From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Mar 08 2007 - 05:47:05 CST

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TITLE:
Linux Kernel Omnikey CardMan 4040 Driver Buffer Overflow

SECUNIA ADVISORY ID:
SA24436

VERIFY ADVISORY:
http://secunia.com/advisories/24436/

CRITICAL:
Not critical

IMPACT:
Privilege escalation, DoS

WHERE:
Local system

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

DESCRIPTION:
A vulnerability has been reported in the Linux Kernel, which
potentially can be exploited by malicious, local users to cause a DoS
(Denial of Service) or gain escalated privileges.

The vulnerability is caused due to boundary errors within the
"read()" and "write()" functions of the Omnikey CardMan 4040 driver.
This can be exploited to cause a buffer overflow and may allow the
execution of arbitrary code with kernel privileges.

The vulnerability is reported in versions prior to 2.6.21-rc3.

SOLUTION:
Update to 2.6.21-rc3.

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

ORIGINAL ADVISORY:
http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.21-rc3

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