USN-985-1: mountall vulnerability

8 September 2010

mountall vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 10.04 LTS

Summary

Local root escalation via writable udev rules.

Software Description

  • mountall - filesystem mounting tool

Details

Alasdair MacGregor discovered that mountall created a udev rule file with world-writable permissions. A local attacker could exploit this under certain conditions to cause udev to execute arbitrary commands as the root user.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 10.04 LTS
mountall - 2.15.2

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