TITLE:
Linux Kernel ptrace Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA17761

VERIFY ADVISORY:
http://secunia.com/advisories/17761/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

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).

The vulnerability is caused due to a missing check of the thread's
group ID in ptrace.c when trying to determine whether the process is
attempting to attach to itself when CLONE_THREAD is used. This may be
exploited to cause a kernel crash.

The vulnerability has been reported in versions prior to 2.6.14.2.

SOLUTION:
Update to version 2.6.14.2 or later.
http://www.kernel.org/

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
Kernel.org:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.14.2
http://www.kernel.org/git/?p=linux/kernel/git/gregkh/linux-2.6.14.y.git;a=commit;h=082d52c56f642d21b771a13221068d40915a1409

Red Hat Bugzilla:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=174075

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