----------------------------------------------------------------------

2003: 2,700 advisories published
2004: 3,100 advisories published
2005: 4,600 advisories published
2006: 5,300 advisories published

How do you know which Secunia advisories are important to you?

The Secunia Vulnerability Intelligence Solutions allows you to filter
and structure all the information you need, so you can address issues
effectively.

Get a free trial of the Secunia Vulnerability Intelligence Solutions:
http://corporate.secunia.com/how_to_buy/38/vi/?ref=secadv

----------------------------------------------------------------------

TITLE:
ClamAV "cli_scanpe()" MEW Handling Integer Overflow

SECUNIA ADVISORY ID:
SA28117

VERIFY ADVISORY:
http://secunia.com/advisories/28117/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

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

DESCRIPTION:
A vulnerability has been reported in ClamAV, which can be exploited
by malicious people to cause a DoS (Denial of Service) or compromise
a vulnerable system.

The vulnerability is caused due to an integer overflow error within
the "cli_scanpe()" function when handling MEW packed executables.
This can be exploited to cause a heap-based buffer overflow via
specially crafted "ssize" and "dsize" values.

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in versions prior to 0.92.

SOLUTION:
Update to version 0.92.

PROVIDED AND/OR DISCOVERED BY:
Discovered by an anonymous researcher and reported via iDefense Labs.

ORIGINAL ADVISORY:
ClamAV:
http://sourceforge.net/project/shownotes.php?release_id=562254&group_id=86638

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=634

----------------------------------------------------------------------

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.

----------------------------------------------------------------------