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Apache HTTP Server 2.2.20 Released

From:  Jim Jagielski <>
Subject:  [ANNOUNCEMENT] Apache HTTP Server 2.2.20 Released
Date:  Wed, 31 Aug 2011 07:21:33 -0400
Message-ID:  <>
Archive-link:  Article

                  Apache HTTP Server 2.2.20 Released

The Apache Software Foundation and the Apache HTTP Server Project are
pleased to announce the release of version 2.2.20 of the Apache HTTP
Server ("Apache").  This version of Apache is principally a security
and bug fix release:

* SECURITY: CVE-2011-3192 (
  core: Fix handling of byte-range requests to use less memory, to avoid
  denial of service. If the sum of all ranges in a request is larger than
  the original file, ignore the ranges and send the complete file.
  PR 51714.

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

Apache HTTP Server 2.2.20 is available for download from:

Please see the CHANGES_2.2 file, linked from the download page, for a
full list of changes.  A condensed list, CHANGES_2.2.20 provides the
complete list of changes since 2.2.19.  A summary of all of the security
vulnerabilities addressed in this and earlier releases is available:

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:

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.

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.

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Apache HTTP Server 2.2.20 Released

Posted Aug 31, 2011 17:31 UTC (Wed) by Thue (subscriber, #14277) [Link]

Apache started by saying that a fix would be released within 48 hours, which they said on August 24. So since it is now august 31, the fix took a good deal longer than expected.

Apache HTTP Server 2.2.20 Released

Posted Aug 31, 2011 17:34 UTC (Wed) by raven667 (subscriber, #5198) [Link]

Clearly the problem and fix was more complicated than they hoped. I have no reason to believe that they did any less than their flat-out best.

Apache HTTP Server 2.2.20 Released

Posted Aug 31, 2011 21:02 UTC (Wed) by Thue (subscriber, #14277) [Link]

Agreed. It was more a note than a criticism.

And because I spent sometime earlier today trying to figure out whatever happened to the promised fix, so I could upgrade my servers.

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