Synopsis

Moderate: php security update

Type/Severity

Security Advisory: Moderate

Topic

Updated php packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having Moderate
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. PHP's fileinfo module provides functions used to identify a
particular file according to the type of data contained by the file.

A denial of service flaw was found in the File Information (fileinfo)
extension rules for detecting AWK files. A remote attacker could use this
flaw to cause a PHP application using fileinfo to consume an excessive
amount of CPU. (CVE-2013-7345)

Multiple denial of service flaws were found in the way the File Information
(fileinfo) extension parsed certain Composite Document Format (CDF) files.
A remote attacker could use either of these flaws to crash a PHP
application using fileinfo via a specially crafted CDF file.
(CVE-2014-0207, CVE-2014-0237, CVE-2014-0238, CVE-2014-3479, CVE-2014-3480,
CVE-2014-3487)

A heap-based buffer overflow flaw was found in the way PHP parsed DNS TXT
records. A malicious DNS server or a man-in-the-middle attacker could
possibly use this flaw to execute arbitrary code as the PHP interpreter if
a PHP application used the dns_get_record() function to perform a DNS
query. (CVE-2014-4049)

A type confusion issue was found in PHP's phpinfo() function. A malicious
script author could possibly use this flaw to disclose certain portions of
server memory. (CVE-2014-4721)

A type confusion issue was found in the SPL ArrayObject and
SPLObjectStorage classes' unserialize() method. A remote attacker able to
submit specially crafted input to a PHP application, which would then
unserialize this input using one of the aforementioned methods, could use
this flaw to execute arbitrary code with the privileges of the user running
that PHP application. (CVE-2014-3515)

The CVE-2014-0207, CVE-2014-0237, CVE-2014-0238, CVE-2014-3479,
CVE-2014-3480, and CVE-2014-3487 issues were discovered by Francisco Alonso
of Red Hat Product Security.

All php 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 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3 x86_64

Fixes

• BZ - 1079846 - CVE-2013-7345 file: extensive backtracking in awk rule regular expression
• BZ - 1091842 - CVE-2014-0207 file: cdf_read_short_sector insufficient boundary check
• BZ - 1098155 - CVE-2014-0238 file: CDF property info parsing nelements infinite loop
• BZ - 1098193 - CVE-2014-0237 file: cdf_unpack_summary_info() excessive looping DoS
• BZ - 1104858 - CVE-2014-3480 file: cdf_count_chain insufficient boundary check
• BZ - 1104869 - CVE-2014-3479 file: cdf_check_stream_offset insufficient boundary check
• BZ - 1107544 - CVE-2014-3487 file: cdf_read_property_info insufficient boundary check
• BZ - 1108447 - CVE-2014-4049 php: heap-based buffer overflow in DNS TXT record parsing
• BZ - 1112154 - CVE-2014-3515 php: unserialize() SPL ArrayObject / SPLObjectStorage type confusion flaw
• BZ - 1116662 - CVE-2014-4721 php: type confusion issue in phpinfo() leading to information leak

CVEs

• CVE-2014-0237
• CVE-2014-4049
• CVE-2013-7345
• CVE-2014-0207
• CVE-2014-3515
• CVE-2014-0238
• CVE-2014-3479
• CVE-2014-3487
• CVE-2014-3480
• CVE-2014-4721

References