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Secunia Network Software Inspector 2.0 (NSI) - Public Beta

16 days left of beta period.

The 1st generation of the Secunia Network Software Inspector (NSI)
has been available for corporate users for almost 1 year and its been
a tremendous success.

The 2nd generation Secunia NSI is built on the same technology as the
award winning Secunia PSI, which has already been downloaded and
installed on more than 400,000 computers world wide.

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TITLE:
ClamAV Upack Processing Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA29000

VERIFY ADVISORY:
http://secunia.com/advisories/29000/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Clam AntiVirus (clamav) 0.x
http://secunia.com/product/2538/

DESCRIPTION:
Secunia Research has discovered a vulnerability in ClamAV, which can
be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the
"cli_scanpe()" function in libclamav/pe.c. This can be exploited to
cause a heap-based buffer overflow via a specially crafted "Upack"
executable.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in versions 0.92 and 0.92.1. Prior
versions may also be affected.

SOLUTION:
An updated version should be available shortly. The PE scanning
module has been remotely switched off after 10/03/2008.

Do not scan untrusted PE files.

PROVIDED AND/OR DISCOVERED BY:
Alin Rad Pop, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2008-11/

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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:
http://secunia.com/secunia_security_advisories/

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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