RHSA-2014:1768 - Security Advisory

Topic

Updated php53 packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links 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 Exif extension. A specially crafted
JPEG or TIFF file could cause a PHP application using the exif_thumbnail()
function to crash or, possibly, execute arbitrary code with the privileges
of the user running that PHP application. (CVE-2014-3670)

An integer overflow flaw was found in the way custom objects were
unserialized. Specially crafted input processed by the unserialize()
function could cause a PHP application to crash. (CVE-2014-3669)

An out-of-bounds read flaw was found in the way the File Information
(fileinfo) extension parsed Executable and Linkable Format (ELF) files.
A remote attacker could use this flaw to crash a PHP application using
fileinfo via a specially crafted ELF file. (CVE-2014-3710)

An out of bounds read flaw was found in the way the xmlrpc extension parsed
dates in the ISO 8601 format. A specially crafted XML-RPC request or
response could possibly cause a PHP application to crash. (CVE-2014-3668)

The CVE-2014-3710 issue was discovered by Francisco Alonso of Red Hat
Product Security.

All php53 users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 1154500 - CVE-2014-3669 php: integer overflow in unserialize()
• BZ - 1154502 - CVE-2014-3670 php: heap corruption issue in exif_thumbnail()
• BZ - 1154503 - CVE-2014-3668 php: xmlrpc ISO8601 date format parsing out-of-bounds read in mkgmtime()
• BZ - 1155071 - CVE-2014-3710 file: out-of-bounds read in elf note headers

CVEs

• CVE-2014-3669
• CVE-2014-3668
• CVE-2014-3670
• CVE-2014-3710

References

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