=========================================================================Ubuntu Security Notice USN-2617-1
May 21, 2015

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

- Ubuntu 15.04
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

FUSE could be made to overwrite files as the administrator.

Software Description:
- fuse: Filesystem in Userspace

Details:

Tavis Ormandy discovered that FUSE incorrectly filtered environment
variables. A local attacker could use this issue to gain administrative
privileges.

Update instructions:

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

Ubuntu 15.04:
  fuse                            2.9.2-4ubuntu4.15.04.1

Ubuntu 14.10:
  fuse                            2.9.2-4ubuntu4.14.10.1

Ubuntu 14.04 LTS:
  fuse                            2.9.2-4ubuntu4.14.04.1

Ubuntu 12.04 LTS:
  fuse                            2.8.6-2ubuntu2.1

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

References:
  https://ubuntu.com/security/notices/USN-2617-1
  CVE-2015-3202

Package Information:
  https://launchpad.net/ubuntu/+source/fuse/2.9.2-4ubuntu4.15.04.1
  https://launchpad.net/ubuntu/+source/fuse/2.9.2-4ubuntu4.14.10.1
  https://launchpad.net/ubuntu/+source/fuse/2.9.2-4ubuntu4.14.04.1
  https://launchpad.net/ubuntu/+source/fuse/2.8.6-2ubuntu2.1