Ubuntu Security Notice USN-2533-1
16th March, 2015
sudo vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
Sudo would allow unintended access to files.
Software description
- sudo
– Provide limited super user privileges to specific users
Details
Jakub Wilk and Stephane Chazelas discovered that Sudo incorrectly handled
the TZ environment variable. An attacker with Sudo access could possibly
use this issue to open arbitrary files, bypassing intended permissions.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.10:
-
sudo-ldap
1.8.9p5-1ubuntu2.1
-
sudo
1.8.9p5-1ubuntu2.1
- Ubuntu 14.04 LTS:
-
sudo-ldap
1.8.9p5-1ubuntu1.1
-
sudo
1.8.9p5-1ubuntu1.1
- Ubuntu 12.04 LTS:
-
sudo-ldap
1.8.3p1-1ubuntu3.7
-
sudo
1.8.3p1-1ubuntu3.7
- Ubuntu 10.04 LTS:
-
sudo-ldap
1.7.2p1-1ubuntu5.8
-
sudo
1.7.2p1-1ubuntu5.8
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.