VulnerableCode Package Details - pkg:apache/httpd@2.4.40

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Vulnerability	Summary	Fixed by
VCID-7n9g-cb8b-aaaa 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.	2.4.42 Affected by 3 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}
VCID-fccq-2kpj-aaap 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).	2.4.49 Affected by 4 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}
VCID-rdww-rdku-aaas Aliases: CVE-2020-1927	In Apache HTTP Server 2.4.0 to 2.4.41, 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.	2.4.42 Affected by 3 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}
VCID-t7fa-jbkc-aaab 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).	2.4.52 Affected by 4 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}
VCID-z9au-scjh-aaae 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.	2.4.49 Affected by 4 other vulnerabilities. This version is affected by these other vulnerabilities: {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }} {{ fixed_by_vuln.vulnerability_id }}

Vulnerability

Summary

Fixed by

VCID-7n9g-cb8b-aaaa
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.

2.4.42
Affected by 3 other vulnerabilities.

VCID-fccq-2kpj-aaap
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).

2.4.49
Affected by 4 other vulnerabilities.

VCID-rdww-rdku-aaas
Aliases:
CVE-2020-1927

In Apache HTTP Server 2.4.0 to 2.4.41, 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.

2.4.42
Affected by 3 other vulnerabilities.

VCID-t7fa-jbkc-aaab
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).

2.4.52
Affected by 4 other vulnerabilities.

VCID-z9au-scjh-aaae
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.

2.4.49
Affected by 4 other vulnerabilities.

Vulnerability	Summary	Aliases
VCID-38cq-p1jy-aaag	Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'	CVE-2021-30641
VCID-4gaf-sz3q-aaaj	HTTP/2 (2.4.20 through 2.4.39) 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.	CVE-2019-10081
VCID-6cg8-antz-aaap	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	CVE-2021-26690
VCID-9u3h-a9qk-aaab	In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.	CVE-2019-10098
VCID-an9p-a1ra-aaad	In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown.	CVE-2019-10082
VCID-avfr-zuw1-aaam	Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows	CVE-2020-13938
VCID-cspd-eg4d-aaaf	In 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	CVE-2021-26691
VCID-cwce-397z-aaak	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.	CVE-2020-11993
VCID-dt6a-dc5k-aaak	Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE	CVE-2020-11984
VCID-gtfr-3t82-aaab	Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.	CVE-2019-9517
VCID-ncxa-2sp4-aaam	In Apache HTTP Server 2.4.0-2.4.39, 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 malformed 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.	CVE-2019-10092
VCID-nfk5-fhfj-aaaf	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.	CVE-2019-17567
VCID-qz6b-x9ps-aaae	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	CVE-2020-35452
VCID-ytrc-wygq-aaaf	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.	CVE-2020-9490

Vulnerability

Summary

Aliases

VCID-38cq-p1jy-aaag

Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'

CVE-2021-30641

VCID-4gaf-sz3q-aaaj

HTTP/2 (2.4.20 through 2.4.39) 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.

CVE-2019-10081

VCID-6cg8-antz-aaap

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

CVE-2021-26690

VCID-9u3h-a9qk-aaab

In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.

CVE-2019-10098

VCID-an9p-a1ra-aaad

In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown.

CVE-2019-10082

VCID-avfr-zuw1-aaam

Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows

CVE-2020-13938

VCID-cspd-eg4d-aaaf

In 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

CVE-2021-26691

VCID-cwce-397z-aaak

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.

CVE-2020-11993

VCID-dt6a-dc5k-aaak

Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE

CVE-2020-11984

VCID-gtfr-3t82-aaab

Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

CVE-2019-9517

VCID-ncxa-2sp4-aaam

In Apache HTTP Server 2.4.0-2.4.39, 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 malformed 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.

CVE-2019-10092

VCID-nfk5-fhfj-aaaf

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.

CVE-2019-17567

VCID-qz6b-x9ps-aaae

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

CVE-2020-35452

VCID-ytrc-wygq-aaaf

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.

CVE-2020-9490

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2025-03-28T12:34:56.270680+00:00	Apache HTTPD Importer	Affected by	VCID-7n9g-cb8b-aaaa	https://httpd.apache.org/security/json/CVE-2020-1934.json	36.0.0
2025-03-28T12:34:56.102084+00:00	Apache HTTPD Importer	Affected by	VCID-rdww-rdku-aaas	https://httpd.apache.org/security/json/CVE-2020-1927.json	36.0.0
2024-11-18T22:53:05.087293+00:00	Apache HTTPD Importer	Affected by	VCID-7n9g-cb8b-aaaa	https://httpd.apache.org/security/json/CVE-2020-1934.json	34.3.2
2024-11-18T22:53:04.793647+00:00	Apache HTTPD Importer	Affected by	VCID-rdww-rdku-aaas	https://httpd.apache.org/security/json/CVE-2020-1927.json	34.3.2
2024-01-04T01:33:42.904903+00:00	Apache HTTPD Importer	Affected by	VCID-7n9g-cb8b-aaaa	https://httpd.apache.org/security/json/CVE-2020-1934.json	34.0.0rc1
2024-01-04T01:33:42.755631+00:00	Apache HTTPD Importer	Affected by	VCID-rdww-rdku-aaas	https://httpd.apache.org/security/json/CVE-2020-1927.json	34.0.0rc1