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TITLE:
Kaspersky Anti-Virus "klif.sys" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA20629

VERIFY ADVISORY:
http://secunia.com/advisories/20629/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

SOFTWARE:
Kaspersky Anti-Virus 5.x
http://secunia.com/product/2781/
Kaspersky Anti-Virus 6.x
http://secunia.com/product/10470/
Kaspersky Internet Security 6.x
http://secunia.com/product/10471/

DESCRIPTION:
Skywing has discovered a vulnerability in Kaspersky Anti-Virus, which
potentially can be exploited by malicious, local users to cause a DoS
(Denial of Service).

The vulnerability is caused due to missing validation of pointers
supplied by user-space programs before they are used by custom system
services installed by "klif.sys" to access memory. This can be
exploited to cause the system to reboot due to invalid memory
access.

The vulnerability has been confirmed in Kaspersky Anti-Virus
6.0.0.300, Kaspersky Internet Security 6.0.0.300, and also reported
in Kaspersky Internet Security Suite 5.0. Other versions may also be
affected.

SOLUTION:
Restrict system access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Skywing

ORIGINAL ADVISORY:
http://uninformed.org/index.cgi?v=4&a=4&p=4

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About:
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