Hi,
A flaw in the Linux kernel introduced in 3.3 allows a local user to
crash the kernel or obtain root access. Those running new enough
distributions (notably including Ubuntu 12.04) are vulnerable, so
please check whether you need to update.
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1763
http://lwn.net/Articles/540082/
Cheers,
Andy
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