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

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