[SA18766] Linux Kernel ICMP Error Handling Denial of Service

2006-02-08T00:00:00
ID SECURITYVULNS:DOC:11348
Type securityvulns
Reporter Securityvulns
Modified 2006-02-08T00:00:00

Description

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


About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/

Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.