USN-2163-1: PHP vulnerability

7 April 2014

php5 vulnerability

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

  • Ubuntu 13.10
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


PHP could be made to crash if it processed a specially crafted file.

Software Description

  • php5 - HTML-embedded scripting language interpreter


It was discovered that PHP’s embedded libmagic library incorrectly handled PE executables. An attacker could use this issue to cause PHP to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 13.10
libapache2-mod-php5 - 5.5.3+dfsg-1ubuntu2.3
php5-cgi - 5.5.3+dfsg-1ubuntu2.3
php5-cli - 5.5.3+dfsg-1ubuntu2.3
Ubuntu 12.10
libapache2-mod-php5 - 5.4.6-1ubuntu1.8
php5-cgi - 5.4.6-1ubuntu1.8
php5-cli - 5.4.6-1ubuntu1.8
Ubuntu 12.04 LTS
libapache2-mod-php5 - 5.3.10-1ubuntu3.11
php5-cgi - 5.3.10-1ubuntu3.11
php5-cli - 5.3.10-1ubuntu3.11
Ubuntu 10.04 LTS
libapache2-mod-php5 - 5.3.2-1ubuntu4.24
php5-cgi - 5.3.2-1ubuntu4.24
php5-cli - 5.3.2-1ubuntu4.24

To update your system, please follow these instructions:

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