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USN-2599-2: Linux kernel (Utopic HWE) vulnerability

9 May 2015

USN-2599-1 Introduced a regression in the Linux kernel.




USN-2599-1 fixed vulnerabilities in the Linux kernel, however an unrelated
regression in the auditing of some path names was introduced. Due to the
regression the system could crash under certain conditions.

This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

A race condition between chown() and execve() was discovered in the Linux
kernel. A local attacker could exploit this race by using chown on a
setuid-user-binary to gain administrative privileges.