apache

Vulnerabilities (82)

• CVE-2021-44790Dec 20, 2021
  affected < 2.4.52fixed 2.4.52

  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 Ser

• CVE-2021-42013KEVOct 7, 2021
  affected >= 2.4.49, < 2.4.50fixed 2.4.50

  It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by t

• CVE-2021-41773KEVOct 5, 2021
  affected >= 2.4.49, < 2.4.50fixed 2.4.50

  A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usu

• CVE-2021-41524Oct 5, 2021
  affected >= 2.4.49, < 2.4.50fixed 2.4.50

  While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known

• CVE-2021-40438KEVSep 16, 2021
  affected < 2.4.49fixed 2.4.49

  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.

• CVE-2021-39275Sep 16, 2021
  affected < 2.4.49fixed 2.4.49

  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.

• CVE-2021-36160Sep 16, 2021
  affected >= 2.4.30, < 2.4.49fixed 2.4.49

  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).

• CVE-2021-34798Sep 16, 2021
  affected < 2.4.49fixed 2.4.49

  Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

• CVE-2021-33193Aug 16, 2021
  affected >= 2.4.17, < 2.4.49fixed 2.4.49

  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.

• CVE-2021-31618Jun 15, 2021
  affected >= 1.15.17, < 1.15.18fixed 1.15.18

  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

• CVE-2021-30641Jun 10, 2021
  affected >= 2.4.39, < 2.4.47fixed 2.4.47

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

• CVE-2021-26691Jun 10, 2021
  affected >= 2.4.0, < 2.4.47fixed 2.4.47

  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-2021-26690Jun 10, 2021
  affected >= 2.4.0, < 2.4.47fixed 2.4.47

  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-2020-35452Jun 10, 2021
  affected >= 2.4.0, < 2.4.47fixed 2.4.47

  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

• CVE-2020-13950Jun 10, 2021
  affected >= 2.4.41, < 2.4.47fixed 2.4.47

  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

• CVE-2020-13938Jun 10, 2021
  affected >= 2.4.0, < 2.4.47fixed 2.4.47

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

• CVE-2020-11985Aug 7, 2020
  affected >= 2.4.1, < 2.4.24fixed 2.4.24

  IP address spoofing when proxying using mod_remoteip and mod_rewrite 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

• CVE-2020-11993Aug 7, 2020
  affected >= 2.4.20, < 2.4.44fixed 2.4.44

  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" w

• CVE-2020-11984Aug 7, 2020
  affected >= 2.4.32, < 2.4.44fixed 2.4.44

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

• CVE-2020-9490Aug 7, 2020
  affected >= 2.4.20, < 2.4.46fixed 2.4.46

  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 thi