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TITLE:
Linux Kernel CIFS Signing Options Weakness

SECUNIA ADVISORY ID:
SA26366

VERIFY ADVISORY:
http://secunia.com/advisories/26366/

CRITICAL:
Not critical

IMPACT:
Security Bypass

WHERE:
>From local network

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

DESCRIPTION:
A weakness has been reported in the Linux Kernel, which potentially
can be exploited by malicious people to bypass certain security
restrictions.

The weakness is caused due to the Linux Kernel not correctly
enforcing the defined signing options when mounting a CIFS file
system. This may weaken the security and can be leveraged to perform
further attacks.

SOLUTION:
The weakness is fixed in version 2.6.23-rc1.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
Linux Kernel:
http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.23-rc1

Red Hat:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246595

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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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