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TITLE: Linux Kernel ULE Packet Handling Denial of Service
SECUNIA ADVISORY ID: SA21820
VERIFY ADVISORY: http://secunia.com/advisories/21820/
CRITICAL: Less critical
WHERE: >From remote
OPERATING SYSTEM: Linux Kernel 2.6.x http://secunia.com/product/2719/
DESCRIPTION: Ang Way Chuang has reported a vulnerability in Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the ULE (Unidirectional Lightweight Encapsulation) decapsulation code when processing ULE packets. This can be exploited to crash the system by sending a malicious ULE packet with an SNDU (Sub Network Data Unit) size of 0.
The vulnerability has been reported in version 220.127.116.11. Other versions may also be affected.
SOLUTION: Secunia is currently not aware of an official version fixing the vulnerability.
PROVIDED AND/OR DISCOVERED BY: Ang Way Chuang
ORIGINAL ADVISORY: http://lkml.org/lkml/2006/8/20/278
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
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.