Scientific Linux: CVE-2011-1928 Low APR Denial of Service

Date: Fri, 3 Jun 2011 13:25:49 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Low: apr on SL6.x i386/x86_64
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Synopsis: Low: apr security update
Issue Date: 2011-05-31
CVE Numbers: CVE-2011-1928

The Apache Portable Runtime (APR) is a portability library used by the
Apache HTTP Server and other projects. It provides a free library of C
data structures and routines.

The fix for CVE-2011-0419 introduced an infinite loop flaw in the
apr_fnmatch() function when the APR_FNM_PATHNAME matching flag was used.
 A remote attacker could possibly use this flaw to cause a denial of
service on an application using the apr_fnmatch() function. (CVE-2011-1928)

Note: This problem affected httpd configurations using the "Location"
directive with wildcard URLs. The denial of service could have been
triggered during normal operation; it did not specifically require a
malicious HTTP request.

This update also addresses additional problems introduced by the rewrite
 of the apr_fnmatch() function, which was necessary to address the
CVE-2011-0419 flaw.

All apr users should upgrade to these updated packages, which contain a
backported patch to correct this issue. Applications using the apr
library, such as httpd, must be restarted for this update to take effect.

SL6:
 x86_64
 apr-devel-1.3.9-3.el6_1.2.x86_64.rpm
 apr-devel-1.3.9-3.el6_1.2.i686.rpm
 apr-debuginfo-1.3.9-3.el6_1.2.x86_64.rpm
 apr-debuginfo-1.3.9-3.el6_1.2.i686.rpm
 apr-1.3.9-3.el6_1.2.x86_64.rpm
 apr-1.3.9-3.el6_1.2.i686.rpm
 i386
 apr-1.3.9-3.el6_1.2.i686.rpm
 apr-debuginfo-1.3.9-3.el6_1.2.i686.rpm
 apr-devel-1.3.9-3.el6_1.2.i686.rpm

- Scientific Linux Development Team