Apache XML Security for Java could be tricked into validating spoofed signatures.
James Forshaw discovered that Apache XML Security for Java incorrectly validated CanonicalizationMethod parameters. An attacker could use this flaw to spoof XML signatures.
12 November 2013
A security issue affects these releases of Ubuntu and its derivatives:
Apache XML Security for Java could be tricked into validating spoofed signatures.
James Forshaw discovered that Apache XML Security for Java incorrectly validated CanonicalizationMethod parameters. An attacker could use this flaw to spoof XML signatures.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.