The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass “RequestHeader unset” directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states “this is not a security issue in httpd as such.” (CVSS:5.0) (Last Update:2014-07-24)
Category Archives: Apache
Apache Security
[Announcment] Apache HTTP Server 2.2.27 Released
Apache HTTP Server 2.2.27 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.2.27 of the Apache HTTP Server ("Apache"). This version of Apache is principally a security and bug fix maintenance release. CVE-2014-0098 (cve.mitre.org) Segfaults with truncated cookie logging. mod_log_config: Prevent segfaults when logging truncated cookies. Clean up the cookie logging parser to recognize only the cookie=value pairs, not valueless cookies. CVE-2013-6438 (cve.mitre.org) mod_dav: Keep track of length of cdata properly when removing leading spaces. Eliminates a potential denial of service from specifically crafted DAV WRITE requests We consider the Apache HTTP Server 2.4 release to be the best version of Apache available, and encourage users of 2.2 and all prior versions to upgrade. This 2.2 maintenance release is offered for those unable to upgrade at this time. For further details, see: http://www.apache.org/dist/httpd/Announcement2.4.txt Apache HTTP Server 2.4 and 2.2.27 are available for download from: http://httpd.apache.org/download.cgi Please see the CHANGES_2.2 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.2.27 includes only those changes introduced since the prior 2.2 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_22.html This release includes the Apache Portable Runtime (APR) version 1.5.0 and APR Utility Library (APR-util) version 1.5.3, bundled with the tar and zip distributions. The APR libraries libapr and libaprutil (and on Win32, libapriconv version 1.2.1) must all be updated to ensure binary compatibility and address many known security and platform bugs. APR version 1.5 and APR-util version 1.5 represent minor version upgrades from earlier httpd 2.2 source distributions. This release builds on and extends the Apache 2.0 API and is superceeded by the Apache 2.4 API. Modules written for Apache 2.0 or 2.4 will need to be recompiled in order to run with Apache 2.2, and most will require minimal or no source code changes. When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.
CVE-2014-0098
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server before 2.4.8 allows remote attackers to cause a denial of service (segmentation fault and daemon crash) via a crafted cookie that is not properly handled during truncation. (CVSS:5.0) (Last Update:2014-09-04)
CVE-2013-6438
The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request. (CVSS:5.0) (Last Update:2014-09-04)
ANNOUNCE: Apache HTTP Server 2.4.9 Released
Apache HTTP Server 2.4.9 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.4.9 of the Apache HTTP Server ("Apache"). This version of Apache is our latest GA release of the new generation 2.4.x branch of Apache HTTPD and represents fifteen years of innovation by the project, and is recommended over all previous releases. This release of Apache is principally a security, feature and bug fix release. CVE-2014-0098 (cve.mitre.org) Segfaults with truncated cookie logging. mod_log_config: Prevent segfaults when logging truncated cookies. Clean up the cookie logging parser to recognize only the cookie=value pairs, not valueless cookies. CVE-2013-6438 (cve.mitre.org) mod_dav: Keep track of length of cdata properly when removing leading spaces. Eliminates a potential denial of service from specifically crafted DAV WRITE requests Also in this release are some exciting new features including: *) Finer control over scoping of RewriteRules *) Unix Domain Socket (UDS) support for mod_proxy backends. *) Support for larger shared memory sizes for mod_socache_shmcb *) mod_lua and mod_ssl enhancements *) Support named groups and backreferences within the LocationMatch, DirectoryMatch, FilesMatch and ProxyMatch directives. We consider this release to be the best version of Apache available, and encourage users of all prior versions to upgrade. [NOTE: 2.4.8 was not released.] Apache HTTP Server 2.4.9 is available for download from: http://httpd.apache.org/download.cgi Apache 2.4 offers numerous enhancements, improvements, and performance boosts over the 2.2 codebase. For an overview of new features introduced since 2.4 please see: http://httpd.apache.org/docs/trunk/new_features_2_4.html Please see the CHANGES_2.4 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.4.9 includes only those changes introduced since the prior 2.4 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_24.html This release requires the Apache Portable Runtime (APR) version 1.5.x and APR-Util version 1.5.x. The APR libraries must be upgraded for all features of httpd to operate correctly. This release builds on and extends the Apache 2.2 API. Modules written for Apache 2.2 will need to be recompiled in order to run with Apache 2.4, and require minimal or no source code changes. http://svn.apache.org/repos/asf/httpd/httpd/trunk/VERSIONING When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.
[ANNOUNCEMENT] Apache HTTP Server (httpd) 2.4.7 Released
Apache HTTP Server 2.4.7 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.4.7 of the Apache HTTP Server ("Apache"). This version of Apache is our latest GA release of the new generation 2.4.x branch of Apache HTTPD and represents fifteen years of innovation by the project, and is recommended over all previous releases. This release of Apache is principally a feature and bug fix release. Also in this release are some exciting new features including: *) Major updates to mod_proxy_fcgi *) Higher performant event MPM *) Enhancements to the WinNT MPM We consider this release to be the best version of Apache available, and encourage users of all prior versions to upgrade. NOTE: With this release, the Event MPM checks for acceptable use of atomic operations. If the Event MPM no longer works on your platform, be sure to contact [email protected]. Apache HTTP Server 2.4.7 is available for download from: http://httpd.apache.org/download.cgi Apache 2.4 offers numerous enhancements, improvements, and performance boosts over the 2.2 codebase. For an overview of new features introduced since 2.4 please see: http://httpd.apache.org/docs/trunk/new_features_2_4.html Please see the CHANGES_2.4 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.4.7 includes only those changes introduced since the prior 2.4 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_24.html This release requires the Apache Portable Runtime (APR) version 1.5.x and APR-Util version 1.5.x. The APR libraries must be upgraded for all features of httpd to operate correctly. This release builds on and extends the Apache 2.2 API. Modules written for Apache 2.2 will need to be recompiled in order to run with Apache 2.4, and require minimal or no source code changes. http://svn.apache.org/repos/asf/httpd/httpd/trunk/VERSIONING When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.
[ANNOUNCEMENT] Apache HTTP Server (httpd) 2.2.26 Released
Apache HTTP Server 2.2.26 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.2.26 of the Apache HTTP Server ("Apache"). This version of Apache is principally a bug fix maintenance release. We consider the Apache HTTP Server 2.4 release to be the best version of Apache available, and encourage users of 2.2 and all prior versions to upgrade. This 2.2 maintenance release is offered for those unable to upgrade at this time. For further details, see: http://www.apache.org/dist/httpd/Announcement2.4.txt Apache HTTP Server 2.4 and 2.2.26 are available for download from: http://httpd.apache.org/download.cgi Please see the CHANGES_2.2 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.2.26 includes only those changes introduced since the prior 2.2 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_22.html This release includes the Apache Portable Runtime (APR) version 1.4.8 and APR Utility Library (APR-util) version 1.5.2, bundled with the tar and zip distributions. The APR libraries libapr and libaprutil (and on Win32, libapriconv version 1.2.1) must all be updated to ensure binary compatibility and address many known security and platform bugs. APR-util version 1.5 represents a minor version upgrade from earlier httpd 2.2 source distributions. This release builds on and extends the Apache 2.0 API and is superceeded by the Apache 2.4 API. Modules written for Apache 2.0 or 2.4 will need to be recompiled in order to run with Apache 2.2, and most will require minimal or no source code changes. When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.
CVE-2013-2249
mod_session_dbd.c in the mod_session_dbd module in the Apache HTTP Server before 2.4.5 proceeds with save operations for a session without considering the dirty flag and the requirement for a new session ID, which has unspecified impact and remote attack vectors. (CVSS:7.5) (Last Update:2013-08-30)
[ANNOUNCEMENT] Apache HTTP Server (httpd) 2.4.6 Released
Apache HTTP Server 2.4.6 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.4.6 of the Apache HTTP Server ("Apache"). This version of Apache is our latest GA release of the new generation 2.4.x branch of Apache HTTPD and represents fifteen years of innovation by the project, and is recommended over all previous releases. This release of Apache is principally a security and bug fix release, including the following 2 security fixes: *) SECURITY: CVE-2013-1896 (cve.mitre.org) 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. *) SECURITY: CVE-2013-2249 (cve.mitre.org) mod_session_dbd: Make sure that dirty flag is respected when saving sessions, and ensure the session ID is changed each time the session changes. This changes the format of the updatesession SQL statement. Existing configurations must be changed. Also in this release are some exciting new features including: *) Major updates to mod_lua *) Support for proxying websocket requests *) Higher performant shm-based cache implementation *) Addition of mod_macro for easier configuration management As well as several exciting fixes, especially those related to RFC edge cases in mod_cache and mod_proxy. NOTE: Apache httpd 2.4.5 was not released. We consider this release to be the best version of Apache available, and encourage users of all prior versions to upgrade. Apache HTTP Server 2.4.6 is available for download from: http://httpd.apache.org/download.cgi Apache 2.4 offers numerous enhancements, improvements, and performance boosts over the 2.2 codebase. For an overview of new features introduced since 2.4 please see: http://httpd.apache.org/docs/trunk/new_features_2_4.html Please see the CHANGES_2.4 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.4.6 includes only those changes introduced since the prior 2.4 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_24.html This release requires the Apache Portable Runtime (APR) version 1.4.x and APR-Util version 1.4.x. The APR libraries must be upgraded for all features of httpd to operate correctly. This release builds on and extends the Apache 2.2 API. Modules written for Apache 2.2 will need to be recompiled in order to run with Apache 2.4, and require minimal or no source code changes. http://svn.apache.org/repos/asf/httpd/httpd/trunk/VERSIONING When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.
[Announcement] Apache HTTP Server 2.2.25 Released
Apache HTTP Server 2.2.25 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.2.25 of the Apache HTTP Server ("Apache"). This version of Apache is principally a security and bug fix legacy release, including the following security fixes: * SECURITY: CVE-2013-1896 (cve.mitre.org) mod_dav: 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. * SECURITY: CVE-2013-1862 (cve.mitre.org) mod_rewrite: Ensure that client data written to the RewriteLog is escaped to prevent terminal escape sequences from entering the log file. The Apache HTTP Project thanks Ben Riser and Ramiro Molina for bringing these issues to the attention of the project security team. Errata: the build is known to fail against OpenSSL when that library is built to provide no SSLv2 support whatsoever. The following patch will successfully build httpd 2.2.25 against such OpenSSL installations: http://svn.apache.org/viewvc?view=revision&revision=1501712 We consider the Apache HTTP Server 2.4 release to be the best version of Apache available, and encourage users of 2.2 and all prior versions to upgrade. This 2.2 legacy release is offered for those unable to upgrade at this time. For further details, see: http://www.apache.org/dist/httpd/Announcement2.4.txt Apache HTTP Server 2.4 and 2.2.25 are available for download from: http://httpd.apache.org/download.cgi Please see the CHANGES_2.2 file, linked from the download page, for a full list of changes. A condensed list, CHANGES_2.2.25 includes only those changes introduced since the prior 2.2 release. A summary of all of the security vulnerabilities addressed in this and earlier releases is available: http://httpd.apache.org/security/vulnerabilities_22.html This release includes the Apache Portable Runtime (APR) version 1.4.8 and APR Utility Library (APR-util) version 1.5.2, bundled with the tar and zip distributions. The APR libraries libapr and libaprutil (and on Win32, libapriconv version 1.2.1) must all be updated to ensure binary compatibility and address many known security and platform bugs. APR-util version 1.5 represents a minor version upgrade from earlier httpd 2.2 source distributions. This release builds on and extends the Apache 2.0 API and is superceeded by the Apache 2.4 API. Modules written for Apache 2.0 or 2.4 will need to be recompiled in order to run with Apache 2.2, and most will require minimal or no source code changes. When upgrading or installing this version of Apache, please bear in mind that if you intend to use Apache with one of the threaded MPMs (other than the Prefork MPM), you must ensure that any modules you will be using (and the libraries they depend on) are thread-safe.