Avira Antivirus suffers from division by zero / null pointer dereferencing vulnerabilities when handling a malformed RAR archive.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/73966/TZO-2009-1.txt
Source: https://packetstormsecurity.com/files/73966/Avira-Antivirus-Division-By-Zero.html