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Ubuntu: Security update for PHP

It was discovered that PHP incorrectly handled certain character sequences when applying HTTP response-splitting protection. A remote attacker could create a specially-crafted URL and inject arbitrary headers. It was discovered that PHP incorrectly handled directories with a large number of files. This could allow a remote attacker to execute arbitrary code with the privileges of the web server, or to perform a denial of service. It was discovered that PHP incorrectly parsed certain PDO prepared statements. A remote attacker could use this flaw to cause PHP to crash, leading to a denial of service.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1569-1
September 17, 2012

php5 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Several security issues were fixed in PHP.

Software Description:
- php5: HTML-embedded scripting language interpreter

Details:

It was discovered that PHP incorrectly handled certain character sequences
when applying HTTP response-splitting protection. A remote attacker could
create a specially-crafted URL and inject arbitrary headers.
(CVE-2011-1398, CVE-2012-4388)

It was discovered that PHP incorrectly handled directories with a large
number of files. This could allow a remote attacker to execute arbitrary
code with the privileges of the web server, or to perform a denial of
service. (CVE-2012-2688)

It was discovered that PHP incorrectly parsed certain PDO prepared
statements. A remote attacker could use this flaw to cause PHP to crash,
leading to a denial of service. (CVE-2012-3450)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
 php5                            5.3.10-1ubuntu3.4

Ubuntu 11.10:
 php5                            5.3.6-13ubuntu3.9

Ubuntu 11.04:
 php5                            5.3.5-1ubuntu7.11

Ubuntu 10.04 LTS:
 php5                            5.3.2-1ubuntu4.18

Ubuntu 8.04 LTS:
 php5                            5.2.4-2ubuntu5.26

In general, a standard system update will make all the necessary changes.

References:
 http://www.ubuntu.com/usn/usn-1569-1
 CVE-2011-1398, CVE-2012-2688, CVE-2012-3450, CVE-2012-4388

Package Information:
 https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.4
 https://launchpad.net/ubuntu/+source/php5/5.3.6-13ubuntu3.9
 https://launchpad.net/ubuntu/+source/php5/5.3.5-1ubuntu7.11
 https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.18
 https://launchpad.net/ubuntu/+source/php5/5.2.4-2ubuntu5.26
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