Linux Vendors Rush to Patch Privilege Escalation Flaw After Root Exploits Emerge

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Linux vendors are rushing to patch a privilege escalation vulnerability in the Linux kernel that can be exploited by local attackers to gain root access on the system.

The vulnerability, which is identified as CVE-2012-0056, was discovered by Jüri Aedla and is caused by a failure of the Linux kernel to properly restrict access to the "/proc/
/mem" file.

Linus Torvalds submitted a patch on the official Linux kernel repository on Jan. 17, but before Linux vendors had a chance to apply it for their distributions, proof-of-concept exploit code already appeared online.

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