Apache HTTP Server 2.2.19 Released The Apache Software Foundation and the Apache HTTP Server Project are pleased to announce the release of version 2.2.19 of the Apache HTTP Server ("Apache"). This version of Apache is principally a bug fix release, correcting regressions in the httpd 2.2.18 package; the use of that previous 2.2.18 package is discouraged due to these flaws:
* SECURITY: CVE-2011-1928 (cve.mitre.org) A fix in bundled APR 1.4.4 apr_fnmatch() to address CVE-2011-0419 introduced a new vulnerability. httpd workers enter a hung state (100% cpu utilization) after updating to APR 1.4.4. Upgrading to APR 1.4.5 bundled with the httpd 2.2.19 package, or using APR 1.4.3 or prior with the 'IgnoreClient' option of the 'IndexOptions' directive will circumvent both issues. * httpd 2.2.18: The ap_unescape_url_keep2f() function signature was inadvertantly changed. This breaks binary compatibility of a number of third-party modules. This httpd-2.2.19 package restores the function signature provided by 2.2.17 and prior. We consider this release to be the best version of Apache available, and encourage users of all prior versions to upgrade. Apache HTTP Server 2.2.19 is 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_2.2.19 provides the complete list of changes since 2.2.18. 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 1.4.5 and APR Utility Library (APR-util) version 1.3.12, 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. Apache 2.2 offers numerous enhancements, improvements, and performance boosts over the 2.0 codebase. For an overview of new features introduced since 2.0 please see: http://httpd.apache.org/docs/2.2/new_features_2_2.html This release builds on and extends the Apache 2.0 API. Modules written for Apache 2.0 will need to be recompiled in order to run with Apache 2.2, and require minimal or no source code changes. http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/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.