Search for packages
| purl | pkg:deb/debian/apache2@2.0.54-5sarge2 |
| Next non-vulnerable version | 2.4.66-1~deb12u1 |
| Latest non-vulnerable version | 2.4.66-1~deb12u1 |
| Risk | 10.0 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-115r-fep2-fyfm
Aliases: CVE-2007-6422 |
A flaw was found in the mod_proxy_balancer module. On sites where mod_proxy_balancer is enabled, an authorized user could send a carefully crafted request that would cause the Apache child process handling that request to crash. This could lead to a denial of service if using a threaded Multi-Processing Module. |
Affected by 152 other vulnerabilities. |
|
VCID-1189-ej89-hybs
Aliases: CVE-2017-3169 |
mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-17hy-4ppt-xyhw
Aliases: CVE-2021-26691 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted SessionHeader sent by an origin server could cause a heap overflow |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-1bv2-mkj8-ubaz
Aliases: CVE-2013-1862 |
mod_rewrite does not filter terminal escape sequences from logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences. |
Affected by 105 other vulnerabilities. |
|
VCID-1d24-sy5z-jfhh
Aliases: CVE-2013-5704 |
HTTP trailers could be used to replace HTTP headers late during request processing, potentially undoing or otherwise confusing modules that examined or modified request headers earlier. This fix adds the "MergeTrailers" directive to restore legacy behavior. |
Affected by 105 other vulnerabilities. |
|
VCID-1nh6-77uc-xbak
Aliases: CVE-2007-1863 |
A bug was found in the mod_cache module. On sites where caching is enabled, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. This could lead to a denial of service if using a threaded Multi-Processing Module. |
Affected by 152 other vulnerabilities. |
|
VCID-1wh1-9ccd-s7hq
Aliases: CVE-2012-0216 |
The default configuration of the apache2 package in Debian GNU/Linux squeeze before 2.2.16-6+squeeze7, wheezy before 2.2.22-4, and sid before 2.2.22-4, when mod_php or mod_rivet is used, provides example scripts under the doc/ URI, which might allow local users to conduct cross-site scripting (XSS) attacks, gain privileges, or obtain sensitive information via vectors involving localhost HTTP requests to the Apache HTTP Server. |
Affected by 121 other vulnerabilities. |
|
VCID-1zk6-7wv2-ukcz
Aliases: CVE-2014-0118 |
A resource consumption flaw was found in mod_deflate. If request body decompression was configured (using the "DEFLATE" input filter), a remote attacker could cause the server to consume significant memory and/or CPU resources. The use of request body decompression is not a common configuration. |
Affected by 121 other vulnerabilities. Affected by 105 other vulnerabilities. |
|
VCID-2261-sdn2-zbbu
Aliases: CVE-2007-6421 |
A flaw was found in the mod_proxy_balancer module. On sites where mod_proxy_balancer is enabled, a cross-site scripting attack against an authorized user is possible. |
Affected by 152 other vulnerabilities. |
|
VCID-2d8p-bbc1-hkfa
Aliases: CVE-2025-58098 |
Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives. This issue affects Apache HTTP Server before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue. |
Affected by 0 other vulnerabilities. |
|
VCID-2e6w-fs4j-17g9
Aliases: CVE-2024-27316 |
HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion. |
Affected by 12 other vulnerabilities. |
|
VCID-2nmh-7tfa-zyb2
Aliases: CVE-2016-0736 |
Prior to Apache HTTP release 2.4.25, mod_sessioncrypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC. An authentication tag (SipHash MAC) is now added to prevent such attacks. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-2xc4-7zg9-y7fw
Aliases: CVE-2016-5387 |
HTTP_PROXY is a well-defined environment variable in a CGI process, which collided with a number of libraries which failed to avoid colliding with this CGI namespace. A mitigation is provided for the httpd CGI environment to avoid populating the "HTTP_PROXY" variable from a "Proxy:" header, which has never been registered by IANA. This workaround and patch are documented in the ASF Advisory at asf-httpoxy-response.txt and incorporated in the 2.4.25 and 2.2.32 releases. Note: This is not assigned an httpd severity, as it is a defect in other software which overloaded well-established CGI environment variables, and does not reflect an error in HTTP server software. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-3ay7-bwah-2yd1
Aliases: CVE-2024-42516 |
HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue. |
Affected by 0 other vulnerabilities. |
|
VCID-3djp-gq4c-1fa9
Aliases: CVE-2019-10092 |
A limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could cause the link on the error page to be malfomed and instead point to a page of their choice. This would only be exploitable where a server was set up with proxying enabled but was misconfigured in such a way that the Proxy Error page was displayed. We have taken this opportunity to also remove request data from many other in-built error messages. Note however this issue did not affect them directly and their output was already escaped to prevent cross-site scripting attacks. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-3se4-9vwa-1qbt
Aliases: CVE-2007-1742 |
suexec in Apache HTTP Server (httpd) 2.2.3 uses a partial comparison for verifying whether the current directory is within the document root, which might allow local users to perform unauthorized operations on incorrect directories, as demonstrated using "html_backup" and "htmleditor" under an "html" directory. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root." |
Affected by 152 other vulnerabilities. |
|
VCID-3wuk-hwg1-6fa6
Aliases: CVE-2015-3185 |
A design error in the "ap_some_auth_required" function renders the API unusuable in httpd 2.4.x. In particular the API is documented to answering if the request required authentication but only answers if there are Require lines in the applicable configuration. Since 2.4.x Require lines are used for authorization as well and can appear in configurations even when no authentication is required and the request is entirely unrestricted. This could lead to modules using this API to allow access when they should otherwise not do so. API users should use the new ap_some_authn_required API added in 2.4.16 instead. |
Affected by 121 other vulnerabilities. Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-4c3m-m6ku-kbhq
Aliases: CVE-2023-27522 GHSA-vcph-37mh-fqrh |
HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can truncate/split the response forwarded to the client. |
Affected by 12 other vulnerabilities. |
|
VCID-4d3t-es7p-9qhn
Aliases: CVE-2022-28615 |
Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may hypothetically be affected. |
Affected by 12 other vulnerabilities. |
|
VCID-4mqa-bkha-kbaj
Aliases: CVE-2012-4929 |
security update |
Affected by 121 other vulnerabilities. |
|
VCID-4sss-a8ne-kqbc
Aliases: CVE-2019-0197 |
When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. A server that never enabled the h2 protocol or that only enabled it for https: and did not configure the "H2Upgrade on" is unaffected by this. |
Affected by 68 other vulnerabilities. |
|
VCID-53da-z9gn-n7f2
Aliases: CVE-2012-0021 |
A flaw was found in mod_log_config. If the '%{cookiename}C' log format string is in use, a remote attacker could send a specific cookie causing a crash. This crash would only be a denial of service if using a threaded MPM. |
Affected by 121 other vulnerabilities. |
|
VCID-56kt-8bg6-zbcj
Aliases: CVE-2010-1452 |
A flaw was found in the handling of requests by mod_cache (2.2) and mod_dav (2.0 and 2.2). A malicious remote attacker could send a carefully crafted request and cause a httpd child process to crash. This crash would only be a denial of service if using the worker MPM. This issue is further mitigated as mod_dav is only affected by requests that are most likely to be authenticated, and mod_cache is only affected if the uncommon "CacheIgnoreURLSessionIdentifiers" directive, introduced in version 2.2.14, is used. |
Affected by 140 other vulnerabilities. |
|
VCID-5bej-9h7w-33c8
Aliases: CVE-2017-9798 |
When an unrecognized HTTP Method is given in an <Limit {method}> directive in an .htaccess file, and that .htaccess file is processed by the corresponding request, the global methods table is corrupted in the current worker process, resulting in erratic behaviour. This behavior may be avoided by listing all unusual HTTP Methods in a global httpd.conf RegisterHttpMethod directive in httpd release 2.4.25 and later. To permit other .htaccess directives while denying the <Limit > directive, see the AllowOverrideList directive. Source code patch (2.4) is at; CVE-2017-9798-patch-2.4.patch Source code patch (2.2) is at; CVE-2017-9798-patch-2.2.patch Note 2.2 is end-of-life, no further release with this fix is planned. Users are encouraged to migrate to 2.4.28 or later for this and other fixes. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-5crp-xumw-v7gb
Aliases: CVE-2013-4352 |
A NULL pointer dereference was found in mod_cache. A malicious HTTP server could cause a crash in a caching forward proxy configuration. (Note that this vulnerability was fixed in the 2.4.7 release, but the security impact was not disclosed at the time of the release.) |
Affected by 105 other vulnerabilities. |
|
VCID-5qkp-3w54-j3a5
Aliases: CVE-2013-2249 |
A flaw in mod_session_dbd caused it to proceed with save operations for a session without considering the dirty flag and the requirement for a new session ID. |
Affected by 105 other vulnerabilities. |
|
VCID-5xrt-1n1q-4bey
Aliases: CVE-2020-1927 |
In Apache HTTP Server versions 2.4.0 to 2.4.41 some mod_rewrite configurations vulnerable to open redirect. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-5yez-d5nj-q7eq
Aliases: CVE-2011-3607 |
An integer overflow flaw was found which, when the mod_setenvif module is enabled, could allow local users to gain privileges via a .htaccess file. |
Affected by 121 other vulnerabilities. |
|
VCID-66k7-maf9-dfcd
Aliases: CVE-2020-35452 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-6b7y-562y-suce
Aliases: CVE-2021-31618 |
Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL pointer dereference on initialised memory, crashing reliably the child process. Since such a triggering HTTP/2 request is easy to craft and submit, this can be exploited to DoS the server. This issue affected mod_http2 1.15.17 and Apache HTTP Server version 2.4.47 only. Apache HTTP Server 2.4.47 was never released. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-6bez-sgg8-cbbq
Aliases: CVE-2012-2687 |
Possible XSS for sites which use mod_negotiation and allow untrusted uploads to locations which have MultiViews enabled. Note: This issue is also known as CVE-2008-0455. |
Affected by 121 other vulnerabilities. |
|
VCID-6d43-sjqw-tbbp
Aliases: CVE-2009-3095 |
A flaw was found in the mod_proxy_ftp module. In a reverse proxy configuration, a remote attacker could use this flaw to bypass intended access restrictions by creating a carefully-crafted HTTP Authorization header, allowing the attacker to send arbitrary commands to the FTP server. |
Affected by 140 other vulnerabilities. |
|
VCID-6pzx-1e5t-xbes
Aliases: CVE-2013-6438 |
XML parsing code in mod_dav incorrectly calculates the end of the string when removing leading spaces and places a NUL character outside the buffer, causing random crashes. This XML parsing code is only used with DAV provider modules that support DeltaV, of which the only publicly released provider is mod_dav_svn. |
Affected by 105 other vulnerabilities. |
|
VCID-6qk8-1cj1-4fh7
Aliases: CVE-2022-36760 |
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.54 and prior versions. |
Affected by 12 other vulnerabilities. |
|
VCID-6tgh-b4td-63f5
Aliases: CVE-2024-39573 |
Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy. Users are recommended to upgrade to version 2.4.60, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-6vxq-uxxw-ybeh
Aliases: CVE-2019-0196 |
Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparision when determining the method of a request and thus process the request incorrectly. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-6vze-zk58-7yep
Aliases: CVE-2011-3348 |
A flaw was found when mod_proxy_ajp is used together with mod_proxy_balancer. Given a specific configuration, a remote attacker could send certain malformed HTTP requests, putting a backend server into an error state until the retry timeout expired. This could lead to a temporary denial of service. |
Affected by 121 other vulnerabilities. |
|
VCID-741u-yuv6-nkcy
Aliases: CVE-2008-0455 |
Multiple vulnerabilities have been discovered in Apache. |
Affected by 121 other vulnerabilities. |
|
VCID-7u2r-egf2-vfhx
Aliases: CVE-2018-17189 |
By sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-7vfk-1dwm-xbbt
Aliases: CVE-2019-10097 |
When mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients. |
Affected by 12 other vulnerabilities. |
|
VCID-7vjg-vetg-p7f6
Aliases: CVE-2019-0190 |
A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts. |
Affected by 68 other vulnerabilities. |
|
VCID-7zer-dq7c-8ffq
Aliases: CVE-2016-4979 |
For configurations enabling support for HTTP/2, SSL client certificate validation was not enforced if configured, allowing clients unauthorized access to protected resources over HTTP/2. This issue affected releases 2.4.18 and 2.4.20 only. |
Affected by 94 other vulnerabilities. |
|
VCID-8axm-4anr-27ht
Aliases: CVE-2013-1896 |
Sending a MERGE request against a URI handled by mod_dav_svn with the source href (sent as part of the request body as XML) pointing to a URI that is not configured for DAV will trigger a segfault. |
Affected by 105 other vulnerabilities. |
|
VCID-8edq-8rvq-rkf1
Aliases: CVE-2024-38475 |
Affected by 12 other vulnerabilities. |
|
|
VCID-8eqf-c42n-y7dt
Aliases: CVE-2014-3583 |
An out-of-bounds memory read was found in mod_proxy_fcgi. A malicious FastCGI server could send a carefully crafted response which could lead to a crash when reading past the end of a heap memory or stack buffer. This issue affects version 2.4.10 only. |
Affected by 105 other vulnerabilities. |
|
VCID-8gcm-7q3n-q7bm
Aliases: CVE-2016-4975 |
Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. |
Affected by 94 other vulnerabilities. |
|
VCID-8nw9-zpxn-ckab
Aliases: CVE-2024-38476 |
Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-95zk-suqh-j7e7
Aliases: CVE-2007-3847 |
A flaw was found in the Apache HTTP Server mod_proxy module. On sites where a reverse proxy is configured, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. On sites where a forward proxy is configured, an attacker could cause a similar crash if a user could be persuaded to visit a malicious site using the proxy. This could lead to a denial of service if using a threaded Multi-Processing Module. |
Affected by 152 other vulnerabilities. |
|
VCID-9qdr-1v39-d7b7
Aliases: CVE-2018-1283 |
When mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications. The severity is set to Moderate because "SessionEnv on" is not a default nor common configuration, it should be considered more severe when this is the case though, because of the possible remote exploitation. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-9tez-97xg-z3bs
Aliases: CVE-2025-49812 |
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade. |
Affected by 0 other vulnerabilities. |
|
VCID-9u53-b79b-cfgd
Aliases: CVE-2021-34798 |
Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-9vzm-qtye-ufh2
Aliases: CVE-2018-1333 |
By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. This issue only affects servers that have configured and enabled HTTP/2 support, which is not the default |
Affected by 68 other vulnerabilities. |
|
VCID-9ych-ybpr-j3h6
Aliases: CVE-2020-13950 |
Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service |
Affected by 12 other vulnerabilities. |
|
VCID-a9rw-3s1y-hqd7
Aliases: CVE-2019-10082 |
Using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-acx3-3v8f-1fhu
Aliases: CVE-2013-1048 |
The Debian apache2ctl script in the apache2 package squeeze before 2.2.16-6+squeeze11, wheezy before 2.2.22-13, and sid before 2.2.22-13 for the Apache HTTP Server on Debian GNU/Linux does not properly create the /var/lock/apache2 lock directory, which allows local users to gain privileges via an unspecified symlink attack. |
Affected by 121 other vulnerabilities. |
|
VCID-apfh-r85v-dbhz
Aliases: CVE-2018-1302 |
When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.33 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerabilty hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. |
Affected by 68 other vulnerabilities. |
|
VCID-auhk-ppv5-buaa
Aliases: CVE-2020-1934 |
in Apache HTTP Server versions 2.4.0 to 2.4.41, mod_proxy_ftp use of uninitialized value with malicious FTP backend. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-b68y-4prb-bfdk
Aliases: CVE-2023-31122 |
Out-of-bounds Read vulnerability in mod_macro of Apache HTTP Server.This issue affects Apache HTTP Server: through 2.4.57. |
Affected by 12 other vulnerabilities. |
|
VCID-b9ks-detx-nkdw
Aliases: CVE-2024-43394 |
Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.63. Note:  The Apache HTTP Server Project will be setting a higher bar for accepting vulnerability reports regarding SSRF via UNC paths. The server offers limited protection against administrators directing the server to open UNC paths. Windows servers should limit the hosts they will connect over via SMB based on the nature of NTLM authentication. |
Affected by 0 other vulnerabilities. |
|
VCID-bau7-pme5-ckbt
Aliases: CVE-2024-24795 |
HTTP Response splitting in multiple modules in Apache HTTP Server allows an attacker that can inject malicious response headers into backend applications to cause an HTTP desynchronization attack. Users are recommended to upgrade to version 2.4.59, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-bvkg-nrwd-e7g8
Aliases: CVE-2021-26690 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-cn4b-1w42-gyda
Aliases: CVE-2010-2791 |
An information disclosure flaw was found in mod_proxy_http in version 2.2.9 only, on Unix platforms. Under certain timeout conditions, the server could return a response intended for another user. Only those configurations which trigger the use of proxy worker pools are affected. There was no vulnerability on earlier versions, as proxy pools were not yet introduced. The simplest workaround is to globally configure: SetEnv proxy-nokeepalive 1 |
Affected by 152 other vulnerabilities. |
|
VCID-cqjv-6m9n-mfeq
Aliases: CVE-2021-44224 |
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included). |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-ct26-19cq-8kd7
Aliases: CVE-2018-17199 |
In Apache HTTP Server 2.4 release 2.4.37 and prior, mod_session checks the session expiry time before decoding the session. This causes session expiry time to be ignored for mod_session_cookie sessions since the expiry time is loaded when the session is decoded. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-d36c-rrxh-ybgv
Aliases: CVE-2022-29404 |
In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0) may cause a denial of service due to no default limit on possible input size. |
Affected by 12 other vulnerabilities. |
|
VCID-d4rc-pnv5-6uc8
Aliases: CVE-2012-0053 |
A flaw was found in the default error response for status code 400. This flaw could be used by an attacker to expose "httpOnly" cookies when no custom ErrorDocument is specified. |
Affected by 121 other vulnerabilities. |
|
VCID-d83x-xe6y-dufr
Aliases: CVE-2007-6203 |
Multiple vulnerabilities have been discovered in Apache. |
Affected by 152 other vulnerabilities. |
|
VCID-db6k-j9mj-e7hy
Aliases: CVE-2021-33193 |
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48. |
Affected by 12 other vulnerabilities. |
|
VCID-dqkp-f1my-dbg9
Aliases: CVE-2007-5000 |
A flaw was found in the mod_imagemap module. On sites where mod_imagemap is enabled and an imagemap file is publicly available, a cross-site scripting attack is possible. |
Affected by 152 other vulnerabilities. |
|
VCID-e3jc-83a7-8uhh
Aliases: CVE-2018-11763 |
By sending continous SETTINGS frames of maximum size an ongoing HTTP/2 connection could be kept busy and would never time out. This can be abused for a DoS on the server. This only affect a server that has enabled the h2 protocol. |
Affected by 68 other vulnerabilities. |
|
VCID-edvy-cern-6kcu
Aliases: CVE-2023-25690 |
Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server. |
Affected by 12 other vulnerabilities. |
|
VCID-eesz-v6ae-gya3
Aliases: CVE-2020-9490 |
In Apache HTTP Server versions 2.4.20 to 2.4.43, a specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-ehv1-yvpu-ubcg
Aliases: CVE-2019-0211 |
In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-ej7y-7na3-5qby
Aliases: CVE-2024-38474 |
Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified. |
Affected by 12 other vulnerabilities. |
|
VCID-f2y3-s6j8-7ygr
Aliases: CVE-2019-17567 |
Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured. |
Affected by 12 other vulnerabilities. |
|
VCID-fn5k-e2jr-6ube
Aliases: CVE-2008-2364 |
A flaw was found in the handling of excessive interim responses from an origin server when using mod_proxy_http. A remote attacker could cause a denial of service or high memory usage. |
Affected by 152 other vulnerabilities. |
|
VCID-fnxp-n271-mfd8
Aliases: CVE-2014-3581 |
A NULL pointer deference was found in mod_cache. A malicious HTTP server could cause a crash in a caching forward proxy configuration. This crash would only be a denial of service if using a threaded MPM. |
Affected by 105 other vulnerabilities. |
|
VCID-fqem-96w3-rucb
Aliases: CVE-2018-1312 |
When generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-fsh3-7b9j-dfgf
Aliases: CVE-2025-65082 |
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs. This issue affects Apache HTTP Server from 2.4.0 through 2.4.65. Users are recommended to upgrade to version 2.4.66 which fixes the issue. |
Affected by 0 other vulnerabilities. |
|
VCID-ftjw-9fb6-d3cw
Aliases: CVE-2024-38473 |
Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests. Users are recommended to upgrade to version 2.4.60, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-fyrq-yg2u-jkc7
Aliases: CVE-2017-7679 |
mod_mime can read one byte past the end of a buffer when sending a malicious Content-Type response header. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-fysz-5mr6-fbf1
Aliases: CVE-2009-1890 |
A denial of service flaw was found in the mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time. |
Affected by 140 other vulnerabilities. |
|
VCID-fz8c-b8r4-1yb8
Aliases: CVE-2006-20001 |
A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier. |
Affected by 12 other vulnerabilities. |
|
VCID-g2pp-aahn-mfcd
Aliases: CVE-2008-2939 |
A flaw was found in the handling of wildcards in the path of a FTP URL with mod_proxy_ftp. If mod_proxy_ftp is enabled to support FTP-over-HTTP, requests containing globbing characters could lead to cross-site scripting (XSS) attacks. |
Affected by 152 other vulnerabilities. |
|
VCID-g55m-t4s1-nfhv
Aliases: CVE-2022-23943 |
Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions. |
Affected by 12 other vulnerabilities. |
|
VCID-g6xr-qtwz-2yaq
Aliases: CVE-2021-30641 |
Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF' |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-gqat-458a-67g2
Aliases: CVE-2015-0228 |
A stack recursion crash in the mod_lua module was found. A Lua script executing the r:wsupgrade() function could crash the process if a malicious client sent a carefully crafted PING request. This issue affected releases 2.4.7 through 2.4.12 inclusive. |
Affected by 105 other vulnerabilities. |
|
VCID-gu44-7hkr-muae
Aliases: CVE-2011-4317 |
An additional exposure was found when using mod_proxy in reverse proxy mode. In certain configurations using RewriteRule with proxy flag or ProxyPassMatch, a remote attacker could cause the reverse proxy to connect to an arbitrary server, possibly disclosing sensitive information from internal web servers not directly accessible to attacker. |
Affected by 121 other vulnerabilities. |
|
VCID-gv84-vfvh-y7hu
Aliases: CVE-2022-30522 |
If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort. |
Affected by 12 other vulnerabilities. |
|
VCID-h6kk-81jx-h7b8
Aliases: CVE-2019-10098 |
Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-h6km-ryp2-6ufa
Aliases: CVE-2007-6750 |
Multiple vulnerabilities have been discovered in Apache HTTP Server, possibly allowing remote attackers to execute arbitrary code, cause a Denial of Service condition or perform man-in-the-middle attacks. |
Affected by 140 other vulnerabilities. |
|
VCID-ha7f-21gy-3qa2
Aliases: CVE-2025-53020 |
Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63. Users are recommended to upgrade to version 2.4.64, which fixes the issue. |
Affected by 0 other vulnerabilities. |
|
VCID-hm3f-m22n-u3gy
Aliases: CVE-2022-30556 |
Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer. |
Affected by 12 other vulnerabilities. |
|
VCID-hqr4-pu6e-5uft
Aliases: DSA-3325-2 apache2 |
regression update |
Affected by 121 other vulnerabilities. |
|
VCID-htfx-mahy-9kde
Aliases: CVE-2022-37436 |
Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client. |
Affected by 12 other vulnerabilities. |
|
VCID-j3mb-97k1-uuh9
Aliases: CVE-2006-5752 |
A flaw was found in the mod_status module. On sites where the server-status page is publicly accessible and ExtendedStatus is enabled this could lead to a cross-site scripting attack. Note that the server-status page is not enabled by default and it is best practice to not make this publicly available. |
Affected by 152 other vulnerabilities. |
|
VCID-jau7-gfz8-dkfa
Aliases: CVE-2009-3555 GHSA-f7w7-6pjc-wwm6 VU#120541 |
The renegotiation vulnerability in SSL protocol |
Affected by 140 other vulnerabilities. |
|
VCID-jt89-ruvk-1kbj
Aliases: CVE-2017-9788 |
The value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments. by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-jvhf-ecm7-fbb8
Aliases: CVE-2007-4465 |
Multiple vulnerabilities have been discovered in Apache, possibly resulting in a Denial of Service or the disclosure of sensitive information. |
Affected by 152 other vulnerabilities. |
|
VCID-jzuw-73df-mfff
Aliases: CVE-2018-1301 |
A specially crafted request could have crashed the Apache HTTP Server prior to version 2.4.33, due to an out of bound access after a size limit is reached by reading the HTTP header. This vulnerability is considered very hard if not impossible to trigger in non-debug mode (both log and build level), so it is classified as low risk for common server usage. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-k4kb-21tp-4kc8
Aliases: CVE-2015-3183 |
An HTTP request smuggling attack was possible due to a bug in parsing of chunked requests. A malicious client could force the server to misinterpret the request length, allowing cache poisoning or credential hijacking if an intermediary proxy is in use. |
Affected by 121 other vulnerabilities. Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-k4nk-qqxg-s7e6
Aliases: CVE-2022-22720 |
Apache HTTP Server 2.4.52 and earlier fails to close inbound connection when errors are encountered discarding the request body, exposing the server to HTTP Request Smuggling |
Affected by 12 other vulnerabilities. |
|
VCID-kcwg-hswv-2uf7
Aliases: CVE-2005-3352 |
A flaw in mod_imap when using the Referer directive with image maps. In certain site configurations a remote attacker could perform a cross-site scripting attack if a victim can be forced to visit a malicious URL using certain web browsers. |
Affected by 171 other vulnerabilities. |
|
VCID-ke1s-451y-p3cz
Aliases: CVE-2014-0098 |
A flaw was found in mod_log_config. A remote attacker could send a specific truncated cookie causing a crash. This crash would only be a denial of service if using a threaded MPM. |
Affected by 105 other vulnerabilities. |
|
VCID-kgpj-aexq-7kah
Aliases: CVE-2007-6388 |
A flaw was found in the mod_status module. On sites where mod_status is enabled and the status pages were publicly accessible, a cross-site scripting attack is possible. Note that the server-status page is not enabled by default and it is best practice to not make this publicly available. |
Affected by 152 other vulnerabilities. |
|
VCID-kkfv-4jd1-bqdm
Aliases: CVE-2011-3192 |
A flaw was found in the way the Apache HTTP Server handled Range HTTP headers. A remote attacker could use this flaw to cause httpd to use an excessive amount of memory and CPU time via HTTP requests with a specially-crafted Range header. This could be used in a denial of service attack. Advisory: CVE-2011-3192.txt |
Affected by 121 other vulnerabilities. |
|
VCID-kkuy-1j91-9bb2
Aliases: CVE-2023-45802 |
When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58, which fixes the issue. |
Affected by 12 other vulnerabilities. |
|
VCID-kpew-rarv-83dg
Aliases: CVE-2014-0231 |
A flaw was found in mod_cgid. If a server using mod_cgid hosted CGI scripts which did not consume standard input, a remote attacker could cause child processes to hang indefinitely, leading to denial of service. |
Affected by 121 other vulnerabilities. Affected by 105 other vulnerabilities. |
|
VCID-kv7f-t14h-2bfv
Aliases: CVE-2016-1546 |
By manipulating the flow control windows on streams, a client was able to block server threads for long times, causing starvation of worker threads. Connections could still be opened, but no streams where processed for these. This issue affected HTTP/2 support in 2.4.17 and 2.4.18. |
Affected by 94 other vulnerabilities. |
|
VCID-m8uk-byje-dqey
Aliases: CVE-2005-2970 |
A memory leak in the worker MPM would allow remote attackers to cause a denial of service (memory consumption) via aborted connections, which prevents the memory for the transaction pool from being reused for other connections. This issue was downgraded in severity to low (from moderate) as sucessful exploitation of the race condition would be difficult. |
Affected by 171 other vulnerabilities. |
|
VCID-m9fd-9pya-xucw
Aliases: CVE-2014-0117 |
A flaw was found in mod_proxy in httpd versions 2.4.6 to 2.4.9. A remote attacker could send a carefully crafted request to a server configured as a reverse proxy, and cause the child process to crash. This could lead to a denial of service against a threaded MPM. |
Affected by 105 other vulnerabilities. |
|
VCID-me4r-1qb6-dqdf
Aliases: CVE-2006-3918 |
A flaw in the handling of invalid Expect headers. If an attacker can influence the Expect header that a victim sends to a target site they could perform a cross-site scripting attack. It is known that some versions of Flash can set an arbitrary Expect header which can trigger this flaw. Not marked as a security issue for 2.0 or 2.2 as the cross-site scripting is only returned to the victim after the server times out a connection. |
Affected by 171 other vulnerabilities. |
|
VCID-mtg7-8556-kbgd
Aliases: CVE-2021-40438 |
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-n76a-bbkc-tyhh
Aliases: CVE-2011-1176 |
The configuration merger in itk.c in the Steinar H. Gunderson mpm-itk Multi-Processing Module 2.2.11-01 and 2.2.11-02 for the Apache HTTP Server does not properly handle certain configuration sections that specify NiceValue but not AssignUserID, which might allow remote attackers to gain privileges by leveraging the root uid and root gid of an mpm-itk process. |
Affected by 121 other vulnerabilities. |
|
VCID-n9e1-c2zs-zkdk
Aliases: CVE-2012-4557 |
A flaw was found when mod_proxy_ajp connects to a backend server that takes too long to respond. Given a specific configuration, a remote attacker could send certain requests, putting a backend server into an error state until the retry timeout expired. This could lead to a temporary denial of service. |
Affected by 121 other vulnerabilities. |
|
VCID-na94-5565-dyfc
Aliases: CVE-2022-28614 |
The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use the "ap_rputs" function and may pass it a very large (INT_MAX or larger) string must be compiled against current headers to resolve the issue. |
Affected by 12 other vulnerabilities. |
|
VCID-nb91-camp-eufc
Aliases: CVE-2014-8109 |
Fix handling of the Require line in mod_lau when a LuaAuthzProvider is used in multiple Require directives with different arguments. This could lead to different authentication rules than expected. |
Affected by 105 other vulnerabilities. |
|
VCID-p2a1-afnh-7qca
Aliases: CVE-2022-31813 |
Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on the origin server/application. |
Affected by 12 other vulnerabilities. |
|
VCID-pc2n-ga7g-byga
Aliases: CVE-2016-8743 |
Apache HTTP Server, prior to release 2.4.25 (and 2.2.32), accepted a broad pattern of unusual whitespace patterns from the user-agent, including bare CR, FF, VTAB in parsing the request line and request header lines, as well as HTAB in parsing the request line. Any bare CR present in request lines was treated as whitespace and remained in the request field member "the_request", while a bare CR in the request header field name would be honored as whitespace, and a bare CR in the request header field value was retained the input headers array. Implied additional whitespace was accepted in the request line and prior to the ':' delimiter of any request header lines. RFC7230 Section 3.5 calls out some of these whitespace exceptions, and section 3.2.3 eliminated and clarified the role of implied whitespace in the grammer of this specification. Section 3.1.1 requires exactly one single SP between the method and request-target, and between the request-target and HTTP-version, followed immediately by a CRLF sequence. None of these fields permit any (unencoded) CTL character whatsoever. Section 3.2.4 explicitly disallowed any whitespace from the request header field prior to the ':' character, while Section 3.2 disallows all CTL characters in the request header line other than the HTAB character as whitespace. These defects represent a security concern when httpd is participating in any chain of proxies or interacting with back-end application servers, either through mod_proxy or using conventional CGI mechanisms. In each case where one agent accepts such CTL characters and does not treat them as whitespace, there is the possiblity in a proxy chain of generating two responses from a server behind the uncautious proxy agent. In a sequence of two requests, this results in request A to the first proxy being interpreted as requests A + A' by the backend server, and if requests A and B were submitted to the first proxy in a keepalive connection, the proxy may interpret response A' as the response to request B, polluting the cache or potentially serving the A' content to a different downstream user-agent. These defects are addressed with the release of Apache HTTP Server 2.4.25 and coordinated by a new directive; HttpProtocolOptions Strict which is the default behavior of 2.4.25 and later. By toggling from 'Strict' behavior to 'Unsafe' behavior, some of the restrictions may be relaxed to allow some invalid HTTP/1.1 clients to communicate with the server, but this will reintroduce the possibility of the problems described in this assessment. Note that relaxing the behavior to 'Unsafe' will still not permit raw CTLs other than HTAB (where permitted), but will allow other RFC requirements to not be enforced, such as exactly two SP characters in the request line. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-pdj3-4txb-vych
Aliases: CVE-2009-1891 |
A denial of service flaw was found in the mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. |
Affected by 140 other vulnerabilities. |
|
VCID-pdtf-5zv7-2qaf
Aliases: CVE-2010-0408 |
mod_proxy_ajp would return the wrong status code if it encountered an error, causing a backend server to be put into an error state until the retry timeout expired. A remote attacker could send malicious requests to trigger this issue, resulting in denial of service. |
Affected by 140 other vulnerabilities. |
|
VCID-pjxs-hnjr-duey
Aliases: CVE-2024-38477 |
null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-pnc8-bb23-vqh1
Aliases: CVE-2022-22719 |
A carefully crafted request body can cause a read to a random memory area which could cause the process to crash. This issue affects Apache HTTP Server 2.4.52 and earlier. |
Affected by 12 other vulnerabilities. |
|
VCID-prd8-51a5-pygj
Aliases: CVE-2011-3368 |
An exposure was found when using mod_proxy in reverse proxy mode. In certain configurations using RewriteRule with proxy flag or ProxyPassMatch, a remote attacker could cause the reverse proxy to connect to an arbitrary server, possibly disclosing sensitive information from internal web servers not directly accessible to attacker. No update of 1.3 will be released. Patches will be published to https://archive.apache.org/dist/httpd/patches/apply_to_1.3.42/ |
Affected by 121 other vulnerabilities. |
|
VCID-pz6f-mahv-hue8
Aliases: CVE-2024-39884 |
A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based configuration of handlers.  "AddType" and similar configuration, under some circumstances where files are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may be served instead of interpreted. Users are recommended to upgrade to version 2.4.61, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-q2hz-2qtr-dbht
Aliases: CVE-2007-1741 |
Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation, and their usage, allow local users to gain privileges and execute arbitrary code by renaming directories or performing symlink attacks. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root." |
Affected by 152 other vulnerabilities. |
|
VCID-q5wm-suxb-jfeb
Aliases: CVE-2017-15715 |
The expression specified in <FilesMatch> could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-qayj-kts9-3fde
Aliases: CVE-2017-3167 |
Use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed. Third-party module writers SHOULD use ap_get_basic_auth_components(), available in 2.2.34 and 2.4.26, instead of ap_get_basic_auth_pw(). Modules which call the legacy ap_get_basic_auth_pw() during the authentication phase MUST either immediately authenticate the user after the call, or else stop the request immediately with an error response, to avoid incorrectly authenticating the current request. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-qc9j-x576-ayc1
Aliases: CVE-2018-8011 |
By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. |
Affected by 68 other vulnerabilities. |
|
VCID-qf2e-kgxk-pkhc
Aliases: CVE-2006-3747 |
An off-by-one flaw exists in the Rewrite module, mod_rewrite. Depending on the manner in which Apache httpd was compiled, this software defect may result in a vulnerability which, in combination with certain types of Rewrite rules in the web server configuration files, could be triggered remotely. For vulnerable builds, the nature of the vulnerability can be denial of service (crashing of web server processes) or potentially allow arbitrary code execution. |
Affected by 171 other vulnerabilities. |
|
VCID-qjeh-n57t-y7g5
Aliases: CVE-2024-40725 |
A partial fix for CVE-2024-39884 in the core of Apache HTTP Server 2.4.61 ignores some use of the legacy content-type based configuration of handlers. "AddType" and similar configuration, under some circumstances where files are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may be served instead of interpreted. Users are recommended to upgrade to version 2.4.62, which fixes this issue. |
Affected by 12 other vulnerabilities. |
|
VCID-qm7e-n9ay-hufy
Aliases: CVE-2022-26377 |
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions. |
Affected by 12 other vulnerabilities. |
|
VCID-qufv-kta7-1feu
Aliases: CVE-2005-3357 |
A NULL pointer dereference flaw in mod_ssl was discovered affecting server configurations where an SSL virtual host is configured with access control and a custom 400 error document. A remote attacker could send a carefully crafted request to trigger this issue which would lead to a crash. This crash would only be a denial of service if using the worker MPM. |
Affected by 171 other vulnerabilities. |
|
VCID-r2pc-wuzb-h7hk
Aliases: CVE-2024-36387 |
Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance. |
Affected by 12 other vulnerabilities. |
|
VCID-r471-g9xs-sbga
Aliases: CVE-2025-23048 |
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host. |
Affected by 0 other vulnerabilities. |
|
VCID-rdtq-8ng5-53fn
Aliases: CVE-2021-36160 |
A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-rfqy-e7pv-dyfy
Aliases: CVE-2016-2161 |
Malicious input to mod_auth_digest will cause the server to crash, and each instance continues to crash even for subsequently valid requests. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. |
|
VCID-rhk3-ujc1-q7fj
Aliases: CVE-2012-3499 |
Various XSS flaws due to unescaped hostnames and URIs HTML output in mod_info, mod_status, mod_imagemap, mod_ldap, and mod_proxy_ftp. |
Affected by 121 other vulnerabilities. |
|
VCID-scf1-zmu7-e3b2
Aliases: CVE-2018-1303 |
A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.33 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-srxw-jjvr-p3d5
Aliases: CVE-2007-3304 |
The Apache HTTP server did not verify that a process was an Apache child process before sending it signals. A local attacker with the ability to run scripts on the HTTP server could manipulate the scoreboard and cause arbitrary processes to be terminated which could lead to a denial of service. |
Affected by 152 other vulnerabilities. |
|
VCID-ss79-kcpu-mqd5
Aliases: CVE-2008-0005 |
A workaround was added in the mod_proxy_ftp module. On sites where mod_proxy_ftp is enabled and a forward proxy is configured, a cross-site scripting attack is possible against Web browsers which do not correctly derive the response character set following the rules in RFC 2616. |
Affected by 152 other vulnerabilities. |
|
VCID-ssvj-7g27-1ug6
Aliases: CVE-2012-4558 |
A XSS flaw affected the mod_proxy_balancer manager interface. |
Affected by 121 other vulnerabilities. |
|
VCID-svyk-az69-qbfw
Aliases: CVE-2007-6420 |
The mod_proxy_balancer provided an administrative interface that could be vulnerable to cross-site request forgery (CSRF) attacks. |
Affected by 152 other vulnerabilities. |
|
VCID-t67v-c4gx-ukbj
Aliases: CVE-2020-11984 |
In Apache HTTP Server versions 2.4.32 to 2.4.43, mod_proxy_uwsgi has a information disclosure and possible RCE |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-t95h-xhtm-zbdv
Aliases: CVE-2009-1195 |
A flaw was found in the handling of the "Options" and "AllowOverride" directives. In configurations using the "AllowOverride" directive with certain "Options=" arguments, local users were not restricted from executing commands from a Server-Side-Include script as intended. |
Affected by 140 other vulnerabilities. |
|
VCID-tbud-pwyt-aye9
Aliases: CVE-2014-0226 |
A race condition was found in mod_status. An attacker able to access a public server status page on a server using a threaded MPM could send a carefully crafted request which could lead to a heap buffer overflow. Note that it is not a default or recommended configuration to have a public accessible server status page. |
Affected by 121 other vulnerabilities. Affected by 105 other vulnerabilities. |
|
VCID-td8g-tmny-jyaa
Aliases: CVE-2025-55753 |
An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds. This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue. |
Affected by 0 other vulnerabilities. |
|
VCID-thb2-u6hh-3bcz
Aliases: CVE-2008-1678 |
Multiple vulnerabilities in Apache might lead to a Denial of Service. |
Affected by 152 other vulnerabilities. |
|
VCID-tkm7-pyue-7ffj
Aliases: CVE-2016-8740 |
The HTTP/2 protocol implementation (mod_http2) had an incomplete handling of the LimitRequestFields directive. This allowed an attacker to inject unlimited request headers into the server, leading to eventual memory exhaustion. |
Affected by 94 other vulnerabilities. |
|
VCID-twj7-4qwm-2khv
Aliases: CVE-2017-7668 |
The HTTP strict parsing changes added in 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-u3w6-ubg9-5qdb
Aliases: CVE-2009-1191 |
An information disclosure flaw was found in mod_proxy_ajp in version 2.2.11 only. In certain situations, if a user sent a carefully crafted HTTP request, the server could return a response intended for another user. |
Affected by 140 other vulnerabilities. |
|
VCID-ud2z-cz2h-6qbr
Aliases: CVE-2008-2168 |
httpd: XSS via UTF-7 encoded urls on the 403 Forbidden error page |
Affected by 152 other vulnerabilities. |
|
VCID-ugdv-apr8-g3bz
Aliases: CVE-2019-0215 |
In Apache HTTP Server 2.4 releases 2.4.37 and 2.4.38, a bug in mod_ssl when using per-location client certificate verification with TLSv1.3 allowed a client supporting Post-Handshake Authentication to bypass configured access control restrictions. |
Affected by 68 other vulnerabilities. |
|
VCID-uwqg-yytc-vfae
Aliases: CVE-2019-0220 |
When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-v41h-pbbe-zfas
Aliases: CVE-2019-10081 |
HTTP/2 very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-varh-ysfr-euc8
Aliases: CVE-2025-66200 |
mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65. Users are recommended to upgrade to version 2.4.66, which fixes the issue. |
Affected by 0 other vulnerabilities. |
|
VCID-w6p6-u8ku-k3f6
Aliases: CVE-2019-0217 |
In Apache HTTP Server 2.4 release 2.4.38 and prior, a race condition in mod_auth_digest when running in a threaded server could allow a user with valid credentials to authenticate using another username, bypassing configured access control restrictions. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-wgte-97r1-j7a9
Aliases: CVE-2020-11985 |
For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020. |
Affected by 94 other vulnerabilities. |
|
VCID-wrw6-uzz4-rkfb
Aliases: CVE-2021-39275 |
ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-wshe-gf99-tbg6
Aliases: CVE-2017-7659 |
A maliciously constructed HTTP/2 request could cause mod_http2 to dereference a NULL pointer and crash the server process. |
Affected by 68 other vulnerabilities. |
|
VCID-ww49-y35r-ykdd
Aliases: CVE-2024-43204 |
SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header with a value provided in the HTTP request. Users are recommended to upgrade to version 2.4.64 which fixes this issue. |
Affected by 0 other vulnerabilities. |
|
VCID-wycq-jwzz-q7hf
Aliases: CVE-2010-0434 |
A flaw in the core subrequest process code was fixed, to always provide a shallow copy of the headers_in array to the subrequest, instead of a pointer to the parent request's array as it had for requests without request bodies. This meant all modules such as mod_headers which may manipulate the input headers for a subrequest would poison the parent request in two ways, one by modifying the parent request, which might not be intended, and second by leaving pointers to modified header fields in memory allocated to the subrequest scope, which could be freed before the main request processing was finished, resulting in a segfault or in revealing data from another request on threaded servers, such as the worker or winnt MPMs. |
Affected by 140 other vulnerabilities. |
|
VCID-xa3c-7qgs-5bgf
Aliases: CVE-2011-3639 |
httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix |
Affected by 121 other vulnerabilities. |
|
VCID-xfm9-e5nr-wyat
Aliases: CVE-2022-22721 |
If LimitXMLRequestBody is set to allow request bodies larger than 350MB (defaults to 1M) on 32 bit systems an integer overflow happens which later causes out of bounds writes. This issue affects Apache HTTP Server 2.4.52 and earlier. |
Affected by 12 other vulnerabilities. |
|
VCID-xhyc-9rpu-2bc8
Aliases: CVE-2023-38709 |
Faulty input validation in the core of Apache allows malicious or exploitable backend/content generators to split HTTP responses. This issue affects Apache HTTP Server: through 2.4.58. |
Affected by 12 other vulnerabilities. |
|
VCID-xnfs-bpwj-3ycp
Aliases: CVE-2023-43622 |
An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57. Users are recommended to upgrade to version 2.4.58, which fixes the issue. |
Affected by 12 other vulnerabilities. |
|
VCID-xwnu-h1xh-3bg6
Aliases: CVE-2021-44790 |
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-y3k1-c4rn-xbc2
Aliases: CVE-2019-9517 |
A malicious client could perform a DoS attack by flooding a connection with requests and basically never reading responses on the TCP connection. Depending on h2 worker dimensioning, it was possible to block those with relatively few connections. |
Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-y8nd-7h3r-7fh5
Aliases: CVE-2010-1623 |
A flaw was found in the apr_brigade_split_line() function of the bundled APR-util library, used to process non-SSL requests. A remote attacker could send requests, carefully crafting the timing of individual bytes, which would slowly consume memory, potentially leading to a denial of service. |
Affected by 140 other vulnerabilities. |
|
VCID-ym93-sxb8-fkdm
Aliases: CVE-2012-0031 |
A flaw was found in the handling of the scoreboard. An unprivileged child process could cause the parent process to crash at shutdown rather than terminate cleanly. |
Affected by 121 other vulnerabilities. |
|
VCID-yq3t-swp5-abch
Aliases: CVE-2011-4415 |
httpd: SetEnvIf resource exhaustion |
Affected by 105 other vulnerabilities. |
|
VCID-yz3c-arnr-y3cs
Aliases: CVE-2020-11993 |
In Apache HTTP Server versions 2.4.20 to 2.4.43, when trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers. |
Affected by 68 other vulnerabilities. Affected by 12 other vulnerabilities. |
|
VCID-zc2p-sfu7-jkhc
Aliases: CVE-2017-15710 |
mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. |
Affected by 105 other vulnerabilities. Affected by 94 other vulnerabilities. Affected by 68 other vulnerabilities. |
|
VCID-zkbr-1m2z-ufe7
Aliases: CVE-2009-3094 |
A NULL pointer dereference flaw was found in the mod_proxy_ftp module. A malicious FTP server to which requests are being proxied could use this flaw to crash an httpd child process via a malformed reply to the EPSV or PASV commands, resulting in a limited denial of service. |
Affected by 140 other vulnerabilities. |
|
VCID-zxet-n94k-57ge
Aliases: CVE-2025-49630 |
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on". |
Affected by 0 other vulnerabilities. |
|
VCID-zyyh-n42k-8bhr
Aliases: CVE-2024-47252 |
Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{varname}x" or "%{varname}c" to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||