Ubuntu Security Notice USN-213-1
28th October, 2005
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.10
- Ubuntu 5.04
- Ubuntu 4.10
Tavis Ormandy discovered a privilege escalation vulnerability in sudo.
On executing shell scripts with sudo, the "P4" and "SHELLOPTS"
environment variables were not cleaned properly. If sudo is set up to
grant limited sudo privileges to normal users this could be exploited
to run arbitrary commands as the target user.
Updated packags for Ubuntu 4.10:
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.10:
- Ubuntu 5.04:
- Ubuntu 4.10:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.