Ubuntu Security Notice USN-1423-1
12th April, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Samba could be made to run programs as the administrator if it received specially crafted network traffic.
- samba - SMB/CIFS file, print, and login server for Unix
Brian Gorenc discovered that Samba incorrectly calculated array bounds when
handling remote procedure calls (RPC) over the network. A remote,
unauthenticated attacker could exploit this to execute arbitrary code as the
root user. (CVE-2012-1182)
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- samba 2:3.5.11~dfsg-1ubuntu2.2
- Ubuntu 11.04:
- samba 2:3.5.8~dfsg-1ubuntu2.4
- Ubuntu 10.04 LTS:
- samba 2:3.4.7~dfsg-1ubuntu3.9
- Ubuntu 8.04 LTS:
- samba 3.0.28a-1ubuntu4.18
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.