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TITLE:
Linux Kernel pktcdvd and raw device Block Device Vulnerabilities

SECUNIA ADVISORY ID:
SA15392

VERIFY ADVISORY:
http://secunia.com/advisories/15392/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

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

DESCRIPTION:
alert7 has reported two vulnerabilities in the Linux kernel, which
can be exploited by malicious, local users to gain escalated
privileges.

Input validation errors in the raw device and pktcdvd block device
ioctl handlers (raw_ioctl() and pkt_ioctl() functions) can be
exploited to corrupt kernel memory via specially crafted arguments
passed to the ioctl_by_bdev() function.

Successful exploitation allows execution of arbitrary code with
kernel level privileges, but requires that the user can read the
affected block device.

SOLUTION:
Update to version 2.6.11.10.
http://kernel.org/

PROVIDED AND/OR DISCOVERED BY:
alert7

ORIGINAL ADVISORY:
Kernel.org:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11.10

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About:
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