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Insecure Library Loading
Moderately critical

AVG Anti-Virus UPX Processing Denial of Service

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Release Date:  2008-07-29    Last Update:  2008-08-01    Views:  10,238

Secunia Advisory SA31290

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

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.runs-SA-2008%20004%5D%20-%20AVG%20Antivirus%20UPX%20parsing%20Divide%20by%20Zero%20Advisory.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: AVG Anti-Virus UPX Processing Denial of Service

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