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TITLE:
Linux Kernel ALSA "snd_mem_proc_read()" Information Disclosure

SECUNIA ADVISORY ID:
SA26918

VERIFY ADVISORY:
http://secunia.com/advisories/26918/

CRITICAL:
Not critical

IMPACT:
Exposure of sensitive information

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 can be
exploited by malicious, local users to disclose potentially sensitive
information.

The vulnerability is caused due to an error within the
"snd_mem_proc_read()" function in sound/core/memalloc.c when handling
multiple reads from the "/proc/driver/snd-page-alloc" file, which can
be exploited to disclose certain kernel memory.

The vulnerability is reported in versions prior to 2.6.22.8.

SOLUTION:
Update to version 2.6.22.8.

PROVIDED AND/OR DISCOVERED BY:
Discovered by Neil Kettle (mu-b) of www.digit-labs.org and reported
via iDefense Labs.

ORIGINAL ADVISORY:
Linux Kernel ChangeLog:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.8

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=600

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