Ubuntu Security Notice USN-1754-1
28th February, 2013
sudo vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary
Sudo could be made to run programs as the administrator without a password prompt.
Software description
- sudo - Provide limited super user privileges to specific users
Details
Marco Schoepl discovered that Sudo incorrectly handled time stamp files
when the system clock is set to epoch. A local attacker could use this
issue to run Sudo commands without a password prompt.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- sudo-ldap 1.8.5p2-1ubuntu1.1
- sudo 1.8.5p2-1ubuntu1.1
- Ubuntu 12.04 LTS:
- sudo-ldap 1.8.3p1-1ubuntu3.4
- sudo 1.8.3p1-1ubuntu3.4
- Ubuntu 11.10:
- sudo-ldap 1.7.4p6-1ubuntu2.2
- sudo 1.7.4p6-1ubuntu2.2
- Ubuntu 10.04 LTS:
- sudo-ldap 1.7.2p1-1ubuntu5.6
- sudo 1.7.2p1-1ubuntu5.6
- Ubuntu 8.04 LTS:
- sudo-ldap 1.6.9p10-1ubuntu3.10
- sudo 1.6.9p10-1ubuntu3.10
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.