Jean-Sebastien Guay-Leroux has reported a vulnerability in Avira AntiVir, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in the handling of Zoo archives. This can be exploited to cause an infinite loop resulting in high CPU utilisation.

Solution
The vulnerability is reportedly fixed in avpack32.dll version 7.3.0.6 and in the "antivir" binary for Linux since March 22nd 2007.

Provided and/or discovered by
Jean-Sebastien Guay-Leroux

Original Advisory
Jean-Sebastien Guay-Leroux:
http://www.guay-leroux.com/projects/zoo-infinite-advisory.txt

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