Ubuntu 4.10 / 5.04 : linux-source-2.6.8.1, linux-source-2.6.10 vulnerabilities (USN-169-1)

David Howells discovered a local Denial of Service vulnerability in the key session joining function. Under certain user-triggerable conditions, a semaphore was not released properly, which caused processes which also attempted to join a key session to hang forever. This only affects Ubuntu 5.04...