USN-3353-4: Samba vulnerability
Ubuntu Security Notice USN-3353-4
24th July, 2017
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Samba could allow unintended access to network services.
- samba - SMB/CIFS file, print, and login server for Unix
USN-3353-1 fixed a vulnerability in Heimdal. This update provides the corresponding update for Samba.
Original advisory details:
Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered
that Samba clients incorrectly trusted unauthenticated portions
of Kerberos tickets. A remote attacker could use this to impersonate
trusted network services or perform other attacks.
The problem can be corrected by updating your system to the following package version:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.