USN-4263-2: Sudo vulnerability
sudo vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
Sudo could allow unintended access to the administrator account.
Software Description
- sudo – Provide limited super user privileges to specific users
Details
USN-4263-1 fixed a vulnerability in Sudo. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
Joe Vennix discovered that Sudo incorrectly handled memory operations when
the pwfeedback option is enabled. A local attacker could possibly use this
issue to obtain unintended access to the administrator account.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 ESM
- sudo – 1.8.9p5-1ubuntu1.5+esm3
- sudo-ldap – 1.8.9p5-1ubuntu1.5+esm3
- Ubuntu 12.04 ESM
- sudo – 1.8.3p1-1ubuntu3.9
- sudo-ldap – 1.8.3p1-1ubuntu3.9
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.
References
Source: USN-4263-2: Sudo vulnerability
