Ubuntu Update for ecryptfs-utils USN-1196-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1196-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that eCryptfs incorrectly handled permissions when modifying the mtab file. A local attacker could use this flaw to manipulate the mtab file, and possibly unmount arbitrary locations, leading to a denial of service.
Affected
ecryptfs-utils on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS