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AVG Anti-Virus Multiple File Parsing Vulnerabilities
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Secunia Advisory:
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SA22811
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Release Date:
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2006-11-14
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Last Update:
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2006-11-21
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Critical:
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Highly critical
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Impact:
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Unknown
DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | AVG Anti-Virus Free Edition 7.x
AVG Antivirus 6.x
AVG Antivirus Professional
AVG Antivirus Server
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| | CVE reference: | CVE-2006-5937 (Secunia mirror)
CVE-2006-5938 (Secunia mirror)
CVE-2006-5939 (Secunia mirror)
CVE-2006-5940 (Secunia mirror)
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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.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.
Solution:
Update to the latest version.
Provided and/or discovered by:
Sergio Alvarez, n.runs.
Changelog:
2006-11-21: Added CVE reference.
Original Advisory:
Grisoft:
http://www.grisoft.com/doc/36365/lng/us/tpl/tpl01
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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3 Related Secunia Security Advisories
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1. AVG Antivirus AVG7CORE.SYS IOCTL Handler Privilege Escalation
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2. AVG Anti-Virus Updated Files Insecure File Permissions
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3. AVG Anti-Virus Engine Malformed ARJ Archive Virus Detection Bypass
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If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
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