Moderate: apr and apr-util security update

Updated apr and apr-util packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

The Apache Portable Runtime (APR) is a portability library used by the
Apache HTTP Server and other projects. It aims to provide a free library
of C data structures and routines. apr-util is a utility library used with
APR. This library provides additional utility interfaces for APR; including
support for XML parsing, LDAP, database interfaces, URI parsing, and more.

Multiple integer overflow flaws, leading to heap-based buffer overflows,
were found in the way the Apache Portable Runtime (APR) manages memory pool
and relocatable memory allocations. An attacker could use these flaws to
issue a specially-crafted request for memory allocation, which would lead
to a denial of service (application crash) or, potentially, execute
arbitrary code with the privileges of an application using the APR
libraries. (CVE-2009-2412)

All apr and apr-util users should upgrade to these updated packages, which
contain backported patches to correct these issues. Applications using the
APR libraries, such as httpd, must be restarted for this update to take
effect.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

515698 - CVE-2009-2412 apr, apr-util: Integer overflows in memory pool (apr) and relocatable memory (apr-util) management

https://www.redhat.com/security/data/cve/CVE-2009-2412.html
http://www.redhat.com/security/updates/classification/#moderate