==========================================================================
Ubuntu Security Notice USN-2876-1
January 20, 2016

ecryptfs-utils vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 15.10
– Ubuntu 15.04
– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS

Summary:

mount.ecryptfs_private could be used to run programs as an administrator.

Software Description:
– ecryptfs-utils: eCryptfs cryptographic filesystem utilities

Details:

Jann Horn discovered that mount.ecryptfs_private would mount over certain
directories in the proc filesystem. A local attacker could use this to escalate
their privileges. (CVE-2016-1572)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
ecryptfs-utils 108-0ubuntu1.1

Ubuntu 15.04:
ecryptfs-utils 107-0ubuntu1.3

Ubuntu 14.04 LTS:
ecryptfs-utils 104-0ubuntu1.14.04.4

Ubuntu 12.04 LTS:
ecryptfs-utils 96-0ubuntu3.5

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2876-1
CVE-2016-1572

Package Information:
https://launchpad.net/ubuntu/+source/ecryptfs-utils/108-0ubuntu1.1
https://launchpad.net/ubuntu/+source/ecryptfs-utils/107-0ubuntu1.3
https://launchpad.net/ubuntu/+source/ecryptfs-utils/104-0ubuntu1.14.04.4
https://launchpad.net/ubuntu/+source/ecryptfs-utils/96-0ubuntu3.5

—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
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=g+El
—–END PGP SIGNATURE—–
—