Ubuntu Security Notice USN-142-1
21st June, 2005
sudo vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 5.04
- Ubuntu 4.10
Details
Charles Morris discovered a race condition in sudo which could lead to
privilege escalation. If /etc/sudoers allowed a user the execution of
selected programs, and this was followed by another line containing
the pseudo-command "ALL", that user could execute arbitrary commands
with sudo by creating symbolic links at a certain time.
Please note that this does not affect a standard Ubuntu installation.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 5.04:
- sudo
- Ubuntu 4.10:
- sudo
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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