Ubuntu: 2156-1: Samba vulnerability
Posted by Benjamin D. Thomas   
Ubuntu Samba did not properly enforce the password guessing protection mechanism.
==========================================================================
Ubuntu Security Notice USN-2156-1
March 26, 2014

samba vulnerability
==========================================================================

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

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Samba did not properly enforce the password guessing protection mechanism.

Software Description:
- samba: SMB/CIFS file, print, and login server for Unix

Details:

Andrew Bartlett discovered that Samba did not properly enforce the
password guessing protection mechanism for all interfaces. A remote
attacker could use this issue to possibly attempt to brute force user
passwords.

Update instructions:

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

Ubuntu 13.10:
  samba                           2:3.6.18-1ubuntu3.2

Ubuntu 12.10:
  samba                           2:3.6.6-3ubuntu5.4

Ubuntu 12.04 LTS:
  samba                           2:3.6.3-2ubuntu2.10

Ubuntu 10.04 LTS:
  samba                           2:3.4.7~dfsg-1ubuntu3.14

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

References:
  http://www.ubuntu.com/usn/usn-2156-1
  CVE-2013-4496

Package Information:
  https://launchpad.net/ubuntu/+source/samba/2:3.6.18-1ubuntu3.2
  https://launchpad.net/ubuntu/+source/samba/2:3.6.6-3ubuntu5.4
  https://launchpad.net/ubuntu/+source/samba/2:3.6.3-2ubuntu2.10
  https://launchpad.net/ubuntu/+source/samba/2:3.4.7~dfsg-1ubuntu3.14