USN-3353-2: Samba vulnerability
Ubuntu Security Notice USN-3353-2
14th July, 2017
samba vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Samba could allow unintended access to network services.
Software description
- samba
– SMB/CIFS file, print, and login server for Unix
Details
USN-3353-1 fixed a vulnerability in Heimdal. This update provides
the corresponding update for Samba.
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 servers or perform other attacks.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.04:
-
samba-libs
2:4.5.8+dfsg-0ubuntu0.17.04.4
- Ubuntu 16.10:
-
samba-libs
2:4.4.5+dfsg-2ubuntu5.8
- Ubuntu 16.04 LTS:
-
samba-libs
2:4.3.11+dfsg-0ubuntu0.16.04.9
- Ubuntu 14.04 LTS:
-
samba-libs
2:4.3.11+dfsg-0ubuntu0.14.04.10
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.
References
Source: USN-3353-2: Samba vulnerability
