bogofilter -- heap corruption by invalid base64 input

David Relson reports: Fix a heap corruption in base64 decoder on invalid input. Analysis and patch by Julius Plenz, FU Berlin, Germany...

USN-980-1: bogofilter vulnerability

Julius Plenz discovered that bogofilter incorrectly handled certain malformed encodings. By sending a specially crafted email, a remote attacker could exploit this and cause bogofilter to crash, resulting in a denial of service...