USN-987-1: Samba vulnerability
14 September 2010
samba vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
- Ubuntu 9.10
- Ubuntu 9.04
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Summary
Software Description
- samba
Details
Andrew Bartlett discovered that Samba did not correctly validate the length when parsing SIDs. A remote attacker could send a specially crafted request to the server and cause a denial of service, or possibly execute arbitrary code with the privileges of the Samba service (smbd).
The default compiler options for Ubuntu 8.04 LTS and newer should reduce the vulnerability to a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 10.04 LTS
- samba - 2:3.4.7~dfsg-1ubuntu3.2
- Ubuntu 9.10
- samba - 2:3.4.0-3ubuntu5.7
- Ubuntu 9.04
- samba - 2:3.3.2-1ubuntu3.6
- Ubuntu 8.04 LTS
- samba - 3.0.28a-1ubuntu4.13
- Ubuntu 6.06 LTS
- samba - 3.0.22-1ubuntu3.13
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.