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| purl | pkg:deb/debian/apache2@2.2.16-6%2Bsqueeze12 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-13wj-ajh1-jygx
Aliases: CVE-2018-1283 |
In Apache httpd 2.4.0 to 2.4.29, 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. |
Affected by 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-14p1-29y6-cbh5
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 64 other vulnerabilities. |
|
VCID-1az5-fus4-u3fg
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-1deu-fvex-vkhw
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-214y-hytk-t7ca
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 117 other vulnerabilities. Affected by 101 other vulnerabilities. |
|
VCID-23c5-y72c-8fcg
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 8 other vulnerabilities. |
|
VCID-252u-ercs-cfeu
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 101 other vulnerabilities. |
|
VCID-2ps4-mxjg-33fd
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-2ttq-yhxb-qba3
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-2v3a-ayum-uuh7
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 8 other vulnerabilities. |
|
VCID-2zhx-6a6f-2uf4
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 117 other vulnerabilities. Affected by 101 other vulnerabilities. |
|
VCID-31ng-guzx-8bag
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 101 other vulnerabilities. |
|
VCID-39rt-392b-5bey
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 117 other vulnerabilities. |
|
VCID-3b8v-67py-vuaf
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 8 other vulnerabilities. |
|
VCID-3q4s-hs78-2fhr
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 64 other vulnerabilities. |
|
VCID-3tf2-b2tq-k3dr
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 101 other vulnerabilities. |
|
VCID-3uab-583c-r3dp
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-3uyx-jytn-qyek
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 8 other vulnerabilities. |
|
VCID-44rp-7utz-qfbs
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-4aqv-yqzd-7bgr
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 8 other vulnerabilities. |
|
VCID-4et5-418x-5qga
Aliases: CVE-2012-4558 |
A XSS flaw affected the mod_proxy_balancer manager interface. |
Affected by 117 other vulnerabilities. |
|
VCID-4hgn-pxc6-2qh2
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 90 other vulnerabilities. |
|
VCID-4xk9-yv4c-xqa8
Aliases: CVE-2011-3639 |
httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix |
Affected by 117 other vulnerabilities. |
|
VCID-4zvx-bqfg-jfhr
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 8 other vulnerabilities. |
|
VCID-5n84-u3mu-nqcg
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-5ugq-c3fc-2qfr
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 64 other vulnerabilities. |
|
VCID-5vwd-jvx7-r7c7
Aliases: CVE-2020-11993 |
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-6ak5-ayqx-z3g2
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-6jd4-wbt1-rkak
Aliases: CVE-2024-38475 |
Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a backreferences or variables as the first segment of the substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag "UnsafePrefixStat" can be used to opt back in once ensuring the substitution is appropriately constrained. |
Affected by 8 other vulnerabilities. |
|
VCID-6pcd-bya7-5fcp
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-6q4p-8sra-2qez
Aliases: CVE-2020-1934 |
In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server. |
Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-71rv-66rr-cfg5
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 8 other vulnerabilities. |
|
VCID-7bu7-7kxw-6bhv
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-7ew6-pax8-1yfe
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 64 other vulnerabilities. |
|
VCID-7jx2-zgdg-vbbr
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 117 other vulnerabilities. |
|
VCID-7wu7-sdbz-a7ff
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-8jth-dh6y-guff
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 117 other vulnerabilities. |
|
VCID-91j2-91j1-k7h3
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-9crz-514r-a3e6
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 8 other vulnerabilities. |
|
VCID-9f3y-j6dx-m3aj
Aliases: CVE-2019-0220 |
A vulnerability was found in Apache HTTP Server 2.4.0 to 2.4.38. 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 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-9wxv-prk9-53he
Aliases: CVE-2012-4929 |
Affected by 117 other vulnerabilities. |
|
|
VCID-a4z5-u93k-8qe1
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-a5d5-k9b3-pfbm
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 117 other vulnerabilities. |
|
VCID-abpy-6dkj-ayen
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 8 other vulnerabilities. |
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VCID-atfv-y1yf-23fm
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 64 other vulnerabilities. |
|
VCID-auc4-5bkq-8ffa
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-b79v-gjbu-cubt
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
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VCID-byqk-ch43-6fde
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 8 other vulnerabilities. |
|
VCID-c8av-kuf8-tkfu
Aliases: CVE-2021-30641 |
Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF' |
Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-c9wv-83hp-2qcv
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. |
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VCID-cqqz-reed-qqfx
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 117 other vulnerabilities. |
|
VCID-cwub-3486-j7gk
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-d9nf-3bb3-fydp
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. |
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VCID-ddvz-xmkg-fkda
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 101 other vulnerabilities. |
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VCID-dfj9-cqxy-f3ha
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 101 other vulnerabilities. |
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VCID-dvvr-yvra-dqfq
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
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VCID-ea9w-665t-67cx
Aliases: CVE-2017-7679 |
Affected by 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
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VCID-evpj-czkt-eyhf
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 101 other vulnerabilities. |
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VCID-f4ed-ejfa-2ff6
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 8 other vulnerabilities. |
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VCID-f4td-t4gd-wygf
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 101 other vulnerabilities. |
|
VCID-fx6v-uce2-bkbs
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
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VCID-fzjy-1ctr-6qfd
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 8 other vulnerabilities. |
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VCID-g58j-sxrz-p7ee
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
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VCID-gbmt-u9fv-5fcm
Aliases: CVE-2018-1312 |
In Apache httpd 2.2.0 to 2.4.29, 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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
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VCID-gcku-qkeq-ffha
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 8 other vulnerabilities. |
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VCID-gcts-75xq-2bby
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 90 other vulnerabilities. |
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VCID-gkya-y8rs-jbfk
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 8 other vulnerabilities. |
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VCID-gn1p-j2jj-8fby
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. |
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VCID-gw95-sjjz-p3ad
Aliases: CVE-2017-9798 |
Affected by 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
|
VCID-gwvw-j77f-hfdr
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 8 other vulnerabilities. |
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VCID-h3pb-p69d-7bb2
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
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VCID-h9q7-xzq7-mqcb
Aliases: CVE-2013-1048 |
Affected by 117 other vulnerabilities. |
|
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VCID-hbag-df5u-eqad
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
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VCID-j6dx-vpec-tfbv
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 8 other vulnerabilities. |
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VCID-jnda-zv1s-fkfu
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 8 other vulnerabilities. |
|
VCID-jymp-j5up-cbhm
Aliases: CVE-2018-17189 |
In Apache HTTP server versions 2.4.37 and prior, 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 (mod_http2) connections. |
Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-kdcz-sw5k-e3fd
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. |
|
VCID-kddj-tkv8-6kdw
Aliases: CVE-2011-1176 |
Affected by 117 other vulnerabilities. |
|
|
VCID-kgfq-h2gv-x7hd
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-kgzj-6hae-nyfk
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 101 other vulnerabilities. |
|
VCID-kn69-7afg-pfgt
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 8 other vulnerabilities. |
|
VCID-ktqx-rny1-3kd9
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 8 other vulnerabilities. |
|
VCID-marp-9ycj-4kfh
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 117 other vulnerabilities. |
|
VCID-mbyh-np9j-tkh9
Aliases: CVE-2011-4415 |
httpd: SetEnvIf resource exhaustion |
Affected by 101 other vulnerabilities. |
|
VCID-mrkz-heza-g7bu
Aliases: CVE-2008-0455 |
httpd: mod_negotiation XSS via untrusted file names in directories with MultiViews enabled |
Affected by 117 other vulnerabilities. |
|
VCID-mu3h-2h54-47fb
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-n12h-fyf6-97cc
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 117 other vulnerabilities. Affected by 101 other vulnerabilities. |
|
VCID-n3gv-h1nv-17ev
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 8 other vulnerabilities. |
|
VCID-nd6u-vqrd-gya4
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-ngrj-fut9-yqhh
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 90 other vulnerabilities. |
|
VCID-ngsg-cz1q-z7f8
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 90 other vulnerabilities. |
|
VCID-nj6c-4cty-qkgn
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 117 other vulnerabilities. Affected by 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-p2bz-bf4h-ckcn
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 101 other vulnerabilities. |
|
VCID-pcbt-s3v4-x3ck
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 8 other vulnerabilities. |
|
VCID-pdjs-b2ws-rbdq
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 8 other vulnerabilities. |
|
VCID-pme8-jab7-rkbd
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-przg-pw34-3ubw
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-pv8t-qmzf-q3hh
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 8 other vulnerabilities. |
|
VCID-pwwm-mutd-kufn
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-q38s-1xru-93at
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 8 other vulnerabilities. |
|
VCID-q3dw-277s-47ar
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 101 other vulnerabilities. |
|
VCID-q672-pm8a-2yhm
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-qg6t-eun9-ubgv
Aliases: CVE-2018-11763 |
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol. |
Affected by 64 other vulnerabilities. |
|
VCID-qkt1-uvj2-7ffh
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 8 other vulnerabilities. |
|
VCID-qyuq-xfzf-eqc5
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 64 other vulnerabilities. |
|
VCID-r2xg-b5uj-gfca
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-s52q-nkkg-9bca
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 64 other vulnerabilities. |
|
VCID-s8dn-bj4b-g7aj
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 101 other vulnerabilities. |
|
VCID-satf-sfgu-x3h6
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 8 other vulnerabilities. |
|
VCID-sh8t-477s-e3a8
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 117 other vulnerabilities. |
|
VCID-t4de-spbq-q7ct
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-tb3k-aypx-eyf8
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 8 other vulnerabilities. |
|
VCID-tg1x-bwuc-k3ef
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 117 other vulnerabilities. |
|
VCID-tq9s-1mu7-eufv
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 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-u7gc-jvax-8qc6
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-ujpu-7jcp-4bbh
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-vefs-83s5-8fcv
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 117 other vulnerabilities. Affected by 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-vfbs-rr54-e7bu
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-vwmz-s7f5-dfc7
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 117 other vulnerabilities. |
|
VCID-w9p5-ey45-mqck
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 117 other vulnerabilities. |
|
VCID-was4-dkx8-6udd
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 8 other vulnerabilities. |
|
VCID-x4mu-j77t-xyb2
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-xdaq-rbf5-8fby
Aliases: DSA-3325-2 apache2 |
regression update |
Affected by 117 other vulnerabilities. |
|
VCID-xqrn-nau1-bff2
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 64 other vulnerabilities. Affected by 8 other vulnerabilities. |
|
VCID-xva2-cvyf-vbac
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 8 other vulnerabilities. |
|
VCID-xxsu-sm1s-qkey
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 90 other vulnerabilities. |
|
VCID-xyyk-8f6r-vyct
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. |
|
VCID-xzfe-jskq-r7bh
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 8 other vulnerabilities. |
|
VCID-y8da-5h6x-u3fb
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 8 other vulnerabilities. |
|
VCID-yap9-d5ja-pqfg
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 101 other vulnerabilities. |
|
VCID-yk57-n7zf-hbah
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 101 other vulnerabilities. Affected by 90 other vulnerabilities. Affected by 64 other vulnerabilities. |
|
VCID-yk5y-jsju-rkeh
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 8 other vulnerabilities. |
|
VCID-yte9-8u8p-qqh3
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 117 other vulnerabilities. |
|
VCID-yu6g-bnxs-rfbt
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 8 other vulnerabilities. |
|
VCID-z7xa-vrkn-t3bj
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 117 other vulnerabilities. |
|
VCID-zr3a-8c2c-aye1
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 8 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-17dn-vnzu-eugr | 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. |
CVE-2009-3094
|
| VCID-7f2z-4x67-hqfw | 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. |
CVE-2009-3095
|
| VCID-cqrd-ejej-uqe9 | 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. |
CVE-2010-1623
|
| VCID-jgh7-7mm8-mbgj |
CVE-2009-3555
GHSA-f7w7-6pjc-wwm6 VU#120541 |
|
| VCID-kbrm-xf3u-ybf7 | 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. |
CVE-2009-1191
|
| VCID-khbv-4err-1fc7 | 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. |
CVE-2009-1890
|
| VCID-udpt-st5x-8bc3 | httpd: Apache Slowloris denial of service |
CVE-2007-6750
|
| VCID-v8ha-n4rz-8qb8 | 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. |
CVE-2009-1195
|
| VCID-w8xk-whq9-8baj | 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. |
CVE-2010-0408
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| VCID-x5hy-ecvu-g7c2 | 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. |
CVE-2010-1452
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| VCID-yuy2-dbmk-93f7 | 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. |
CVE-2009-1891
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| VCID-zqh4-yaua-zqb3 | 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. |
CVE-2010-0434
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