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

Try a new way to discover vulnerabilities that ALREADY EXIST in your
IT infrastructure.

The Full Featured Secunia Network Software Inspector (NSI) is now
available:
http://secunia.com/network_software_inspector/

The Secunia NSI enables you to INSPECT, DISCOVER, and DOCUMENT
vulnerabilities in more than 4,000 different Windows applications.

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

TITLE:
Linux Kernel "decode_choices()" Denial of Service

SECUNIA ADVISORY ID:
SA25955

VERIFY ADVISORY:
http://secunia.com/advisories/25955/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Linux Kernel 2.6.x
http://secunia.com/product/2719/

DESCRIPTION:
Zhongling Wen has reported a vulnerability in the Linux Kernel, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error within the
"decode_choice()" function in net/netfilter/bf_conntrack_h323_asn1.c
when handling choices that are still encoded in the fixed-size
bitfield. This can be exploited to cause an access to undefined
types, resulting in a crash.

SOLUTION:
Update to version 2.6.21.6, 2.6.20.15, or 2.6.22.

PROVIDED AND/OR DISCOVERED BY:
Zhongling Wen

ORIGINAL ADVISORY:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22

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

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.

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

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

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