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TITLE: Linux Kernel it87 and via686a Drivers Insecure File Creation
SECUNIA ADVISORY ID: SA15204
VERIFY ADVISORY: http://secunia.com/advisories/15204/
CRITICAL: Not critical
WHERE: Local system
OPERATING SYSTEM: Linux Kernel 2.6.x http://secunia.com/product/2719/
DESCRIPTION: Jean Delvare has reported a security issue in the Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The problem is that the it87 and via686a hardware monitoring drivers create the sysfs file "alarms" with insecure permissions granting write access to the file. This can be exploited to exhaust all available CPU resources by writing to the file.
SOLUTION: Update to version 22.214.171.124. http://kernel.org/
PROVIDED AND/OR DISCOVERED BY: Jean Delvare
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
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