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>> Linux Kernel "hrtimer_start()" Function Local Integer Overflow Vulnerability

Title : Linux Kernel "hrtimer_start()" Function Local Integer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2007-4225
CVE ID : CVE-2007-5966
Rated as : Low Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-12-17


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Linux Kernel, which could be exploited by local attackers to cause a denial of service or potentially obtain elevated privileges. This issue is caused by an error in the "hrtimer_start()" [kernel/hrtimer.c] function when handling large relative timeout values, which could be exploited by malicious users to panic a vulnerable system or potentially execute arbitrary code with elevated privileges.

Affected Products

Linux Kernel version 2.6.23.10 and prior
Linux Kernel version 2.6.22.14 and prior

Solution

Upgrade to Linux Kernel version 2.6.23.10 or 2.6.22.15 :
http://www.kernel.org

References

http://www.vupen.com/english/advisories/2007/4225
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.23.10
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.15

Credits

Vulnerability reported by the vendor.

ChangeLog

2007-12-17 : Initial release
2007-12-18 : Updated Solution

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