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AUSCERT External Security Bulletin Redistribution
Apache Software Foundation and the Apache HTTP Server Project
6 October 2017
AusCERT Security Bulletin Summary
Product: Apache HTTP Server
Publisher: The Apache Software Foundation
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2017-9798
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Apache HTTP Server 2.4.28 Released
October 5, 2017
The Apache Software Foundation and the Apache HTTP Server Project
are pleased to announce the release of version 2.4.28 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
a security, feature, and bug fix release.
We consider this release to be the best version of Apache available, and
encourage users of all prior versions to upgrade.
Apache HTTP Server 2.4.28 is available for download from:
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:
Please see the CHANGES_2.4 file, linked from the download page, for a
full list of changes. A condensed list, CHANGES_2.4.28 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
Of particular note in this release is 1 SECURITY item:
* SECURITY: CVE-2017-9798 (cve.mitre.org)
Corrupted or freed memory access. <Limit[Except] > or the
RegisterHttpMethod directive must be given in the startup
configuration (httpd.conf) to register non-standard HTTP methods
before listing them in an .htaccess files.
This release requires the Apache Portable Runtime (APR), minimum
version 1.5.x, and APR-Util, minimum version 1.5.x. Some features may
require the 1.6.x version of both APR and APR-Util. 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.
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.
Please note that while the Apache HTTP Server Project may publish some
security patches to the 2.2.x flavor through at least December of 2017,
no further maintenance patches of 2.2.x will be considered and no further
releases will be distributed. The 2.2.x branch has now reached the end of
its maintenance, and users are strongly encouraged to promptly complete
their transitions to this 2.4.x flavor of httpd to benefit from security
and bug fixes, as well as new features.
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