RHSA-2013:1063 - Security Advisory

Topic

Updated php packages that fix one security issue are now available for
Red Hat Enterprise Linux 3 and 4 Extended Life Cycle Support.

The Red Hat Security Response Team has rated this update as having critical
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Server.

A buffer overflow flaw was found in the way PHP parsed deeply nested XML
documents. If a PHP application used the xml_parse_into_struct() function
to parse untrusted XML content, an attacker able to supply
specially-crafted XML could use this flaw to crash the application or,
possibly, execute arbitrary code with the privileges of the user running
the PHP interpreter. (CVE-2013-4113)

All php users should upgrade to these updated packages, which contain a
backported patch to resolve this issue. After installing the updated
packages, the httpd daemon must be restarted for the update to take effect.

Solution

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server - Extended Life Cycle Support 4 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 4 ia64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 4 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 3 i386

Fixes

• BZ - 983689 - CVE-2013-4113 php: xml_parse_into_struct buffer overflow when parsing deeply nested XML

CVEs

• CVE-2013-4113

References

• https://access.redhat.com/security/updates/classification/#critical