source: http://www.securityfocus.com/bid/24291/info

GDB is prone to a buffer-overflow vulnerability because it fails to properly check bounds when handling specially crafted executable files.

Attackers could leverage this issue to run arbitrary code outside of a restricted environment, which may lead to privilege escalation. Symantec has not confirmed code execution. 

http://www.exploit-db.com/sploits/30142.zip