=========================================================================Ubuntu Security Notice USN-1937-1
September 05, 2013

php5 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Fraudulent security certificates could allow sensitive information to
be exposed when accessing the Internet.

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

Details:

It was discovered that PHP did not properly handle certificates with NULL
characters in the Subject Alternative Name field. An attacker could exploit
this to perform a man in the middle attack to view sensitive information or
alter encrypted communications.

Update instructions:

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

Ubuntu 13.04:
  libapache2-mod-php5             5.4.9-4ubuntu2.3
  php5-cgi                        5.4.9-4ubuntu2.3
  php5-cli                        5.4.9-4ubuntu2.3

Ubuntu 12.10:
  libapache2-mod-php5             5.4.6-1ubuntu1.4
  php5-cgi                        5.4.6-1ubuntu1.4
  php5-cli                        5.4.6-1ubuntu1.4

Ubuntu 12.04 LTS:
  libapache2-mod-php5             5.3.10-1ubuntu3.8
  php5-cgi                        5.3.10-1ubuntu3.8
  php5-cli                        5.3.10-1ubuntu3.8

Ubuntu 10.04 LTS:
  libapache2-mod-php5             5.3.2-1ubuntu4.21
  libapache2-mod-php5filter       5.3.2-1ubuntu4.21
  php5-cgi                        5.3.2-1ubuntu4.21
  php5-cli                        5.3.2-1ubuntu4.21

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

References:
  https://ubuntu.com/security/notices/USN-1937-1
  CVE-2013-4248

Package Information:
  https://launchpad.net/ubuntu/+source/php5/5.4.9-4ubuntu2.3
  https://launchpad.net/ubuntu/+source/php5/5.4.6-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.8
  https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.21