Avira Antivirus is prone to a remote heap-underflow vulnerability.
Successfully exploiting this vulnerability may allow remote attackers to execute arbitrary code in the context of the application. Failed exploit attempts may likely result in denial-of-service conditions.
The issue is fixed in Avira antivirus 8.3.36.60.
Information
Exploit
The researcher has created a proof-of-concept to demonstrate the issue. Please see the references for more information.