Mozilla · Firefox · CVE-2013-1722
**Name of the Vulnerable Software and Affected Versions**
Mozilla Firefox versions prior to 24.0
Firefox ESR versions prior to 17.0.9
Thunderbird versions prior to 24.0
Thunderbird ESR versions prior to 17.0.9
SeaMonkey versions prior to 2.21
**Description**
The issue allows remote attackers to execute arbitrary code or cause a denial of service due to heap memory corruption. This is achieved through vectors involving stylesheet cloning, exploiting a use-after-free vulnerability in the `nsAnimationManager::BuildAnimations` function.
**Recommendations**
For Mozilla Firefox versions prior to 24.0, update to version 24.0 or later.
For Firefox ESR versions prior to 17.0.9, update to version 17.0.9 or later.
For Thunderbird versions prior to 24.0, update to version 24.0 or later.
For Thunderbird ESR versions prior to 17.0.9, update to version 17.0.9 or later.
For SeaMonkey versions prior to 2.21, update to version 2.21 or later.