A remotely exploitable vulnerability has been found in the file parsing engine of ALWIL avast! antivirus software versions prior to 4.7.700 when parsing .SIS files.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/56954/n.runs-SA-2007.009.txt
Source: https://packetstormsecurity.com/files/56954/n.runs-SA-2007.009.txt.html