TITLE:
Linux Kernel ICMP Error Handling Denial of Service

SECUNIA ADVISORY ID:
SA18766

VERIFY ADVISORY:
http://secunia.com/advisories/18766/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

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 people to cause a DoS (Denial of Service).

The vulnerability is caused due an error in the handling of an error
condition when constructing an ICMP response in the
"ip_options_echo()" function of icmp.c. This can be exploited to
cause a DoS via specially crafted ICMP packets containing
record-route or timestamp IP options.

SOLUTION:
Update to version 2.6.15.3.
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-2.6.15.3

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