---
title: 'USN-985-1: mountall vulnerability | Ubuntu security notices'
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/notices/USN-985-1
---

1. [Ubuntu Security Notices](https://ubuntu.com/security/notices)
2. USN-985-1

---

# USN-985-1: mountall vulnerability

Publication date

8 September 2010

Overview

Local root escalation via writable udev rules.

Releases

[10.04](https://ubuntu.com/security/notices?release=lucid)

---

Open side navigation

## Packages

* [mountall](https://ubuntu.com/security/cves?package=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

In general, a standard system update will make all the necessary changes.

[Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security)

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

| Ubuntu Release | Package Version |
| --- | --- |
| 10.04 lucid | [mountall](https://launchpad.net/ubuntu/+source/mountall) –  [2.15.2](https://launchpad.net/ubuntu/+source/mountall/2.15.2) | | |

---

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## References

* [CVE-2010-2961](https://ubuntu.com/security/CVE-2010-2961)