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To improve our services to our customers, we have made a number of
additions to the Secunia Advisories and have started translating the
advisories to German.

The improvements will help our customers to get a better
understanding of how we reached our conclusions, how it was rated,
our thoughts on exploitation, attack vectors, and scenarios.

This includes:
* Reason for rating
* Extended description
* Extended solution
* Exploit code or links to exploit code
* Deep links

Read the full description:
http://corporate.secunia.com/products/48/?r=l

Contact Secunia Sales for more information:
http://corporate.secunia.com/how_to_buy/15/?r=l

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TITLE:
AVG Anti-Virus Multiple File Parsing Vulnerabilities

SECUNIA ADVISORY ID:
SA22811

VERIFY ADVISORY:
http://secunia.com/advisories/22811/

CRITICAL:
Highly critical

IMPACT:
Unknown, DoS, System access

WHERE:
>From remote

SOFTWARE:
AVG Anti-Virus Free Edition 7.x
http://secunia.com/product/6489/
AVG Antivirus 6.x
http://secunia.com/product/335/
AVG Antivirus Professional
http://secunia.com/product/336/
AVG Antivirus Server
http://secunia.com/product/337/

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

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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