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==========================================================================
Ubuntu Security Notice USN-2813-1
November 17, 2015

lxcfs vulnerabilities
==========================================================================

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

- Ubuntu 15.10
- Ubuntu 15.04

Summary:

Several security issues were fixed in LXCFS.

Software Description:
- lxcfs: FUSE based filesystem for LXC

Details:

It was discovered that LXCFS incorrectly enforced directory escapes. A
local attacker could use this issue to possibly escalate privileges.
(CVE-2015-1342)

It was discovered that LXCFS incorrectly checked certain permissions. A
local attacker could use this issue t possibly escalate privileges.
(CVE-2015-1344)

Update instructions:

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

Ubuntu 15.10:
  lxcfs                           0.10-0ubuntu2.1

Ubuntu 15.04:
  lxcfs                           0.7-0ubuntu4.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2813-1
  CVE-2015-1342, CVE-2015-1344

Package Information:
  https://launchpad.net/ubuntu/+source/lxcfs/0.10-0ubuntu2.1
  https://launchpad.net/ubuntu/+source/lxcfs/0.7-0ubuntu4.1



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