---
title: "CVE-2013-4326\n    | Ubuntu"
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/CVE-2013-4326?format=md
keywords: index, follow
---

# CVE-2013-4326

Publication date 18 September 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

RealtimeKit (aka rtkit) 0.5 does not properly use D-Bus for communication
with a polkit authority, which allows local users to bypass intended access
restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition
via a (1) setuid process or (2) pkexec process, a related issue to
CVE-2013-4288.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| rtkit | 13.04 raring | Fixed 0.10-2ubuntu0.13.04.1 |
| 12.10 quantal | Fixed 0.10-2ubuntu0.12.10.1 |
| 12.04 LTS precise | Fixed 0.10-2ubuntu0.12.04.1 |
| 10.04 LTS lucid | Ignored end of life |

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* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4326)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-4326)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-4326)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-4326)

### Related Ubuntu Security Notices (USN)

+ [USN-1959-1](https://usn.ubuntu.com/USN-1959-1)
+ RealtimeKit vulnerability
+ 18 September 2013

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2013-4326>