Thursday, July 31, 2008 2:13 PM cmosby

AVG Anti-Virus UPX Processing Denial of Service - Secunia

AVG Anti-Virus UPX Processing Denial of Service

Secunia Advisory:
SA31290

Release Date:
2008-07-29

Critical:

Moderately critical

Impact:
DoS

Where:
From remote

Solution Status:
Vendor Patch

Software:
AVG Anti-Virus 8.x


Description:
Sergio ‘shadown’ Alvarez has reported a vulnerability in AVG Anti-Virus, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a divide-by-zero error when processing UPX compressed executables. This can be exploited to cause the scanning engine to crash when scanning a specially crafted UPX compressed executable file.

The vulnerability affects versions prior to 8.0.156.

Solution:
Update to version 8.0.156 or later.

Provided and/or discovered by:
Sergio ‘shadown’ Alvarez

Original Advisory:
AVG:
http://www.grisoft.com/ww.94247

n.runs AG:
http://www.nruns.com/advisories/%5Bn....g%20Divide%20by%20Zero%20Advisory.txt Filed under: , ,

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