USN-1702-1: PHP vulnerability

Ubuntu Security Notice USN-1702-1

22nd January, 2013

php5 vulnerability

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

  • Ubuntu 12.04 LTS


PHP could be made to expose sensitive information over the network.

Software description

  • php5 - HTML-embedded scripting language interpreter


It was discovered that PHP incorrectly handled the openssl_encrypt function
when used with an empty string. An attacker could use this flaw to cause
PHP to disclose arbitrary memory contents and possibly expose sensitive

Update instructions

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

Ubuntu 12.04 LTS:
php5 5.3.10-1ubuntu3.5

To update your system, please follow these instructions:

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