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Highly critical

AVG Anti-Virus Multiple File Parsing Vulnerabilities

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Release Date:  2006-11-14    Last Update:  2006-11-21    Views:  26,277

Secunia Advisory SA22811

Where:

From remote

Impact:

Unknown, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Sergio Alvarez has reported some vulnerabilities in AVG Anti-Virus, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

1) An integer overflow error when parsing CAB archives can be exploited to cause a heap-based buffer overflow via a specially crafted CAB archive.

2) An unspecified error when parsing RAR archives can be exploited to cause a heap-based buffer overflow via a specially crafted RAR archive.

3) An uninitialized variable error exists within the parsing of CAB archives.

4) A division by zero error when parsing DOC files may in certain cases cause a DoS via a specially crafted DOC file.

5) An unspecified error exists within the parsing of EXE files.

The vulnerabilities are reported in AVG Antivirus software versions prior to 7.1.407.


Solution:
Update to the latest version.

Provided and/or discovered by:
Sergio Alvarez, n.runs.

Original Advisory:
Grisoft:
http://www.grisoft.com/doc/36365/lng/us/tpl/tpl01

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 Multiple File Parsing Vulnerabilities

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