Yan Rong Ge discovered that heartbeat did not set proper permissions for an allocated shared memory segment. A local attacker could exploit this to render the heartbeat service unavailable (Denial of Service).
The problem can be corrected by updating your system to the following package versions:
28 July 2006
A security issue affects these releases of Ubuntu and its derivatives:
Yan Rong Ge discovered that heartbeat did not set proper permissions for an allocated shared memory segment. A local attacker could exploit this to render the heartbeat service unavailable (Denial of Service).
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 upgrade is sufficient to effect the necessary changes.
Vulmon