Secunia Security Advisory - Debian has issued an update for libungif4. This fixes two vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system. For more information: SA17436
4e51eb9491b33db43dcce8c28a70508fea1ab90f4005c633e92da98748f9efd7