Apache HTTP Server 2.4.16 Released

The Apache Software Foundation and the Apache HTTP Server Project
are pleased to announce the release of version 2.4.16 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. NOTE: versions
2.4.13, 2.4.14 and 2.4.15 were not released.

CVE-2015-3183 (cve.mitre.org)
core: Fix chunk header parsing defect.
Remove apr_brigade_flatten(), buffering and duplicated code from
the HTTP_IN filter, parse chunks in a single pass with zero copy.
Limit accepted chunk-size to 2^63-1 and be strict about chunk-ext
authorized characters.

CVE-2015-3185 (cve.mitre.org)
Replacement of ap_some_auth_required (unusable in Apache httpd 2.4)
with new ap_some_authn_required and ap_force_authn hook.

CVE-2015-0253 (cve.mitre.org)
core: Fix a crash with ErrorDocument 400 pointing to a local URL-path 
with the INCLUDES filter active, introduced in 2.4.11. PR 57531. 

CVE-2015-0228 (cve.mitre.org)
mod_lua: A maliciously crafted websockets PING after a script
calls r:wsupgrade() can cause a child process crash. 

Also in this release are some exciting new features including:

*) Better default recommended SSLCipherSuite and SSLProxyCipherSuite
*) mod_proxy_scgi: ProxySCGIInternalRedirect now allows an alternate
response header to be used by the application
*) Event MPM improvements
*) Various mod_proxy_* improvements
*) mod_log_config: Add "%{UNIT}T" format to output request duration in
seconds, milliseconds or microseconds depending on UNIT ("s", "ms",
"us")

We consider this release to be the best version of Apache available, and
encourage users of all prior versions to upgrade.

Apache HTTP Server 2.4.16 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_2.4.16 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.