---
title: "CVE-2013-6456\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-2013-6456?format=md
keywords: index, follow
---

# CVE-2013-6456

Publication date 15 April 2014

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The LXC driver (lxc/lxc\_driver.c) in libvirt 1.0.1 through 1.2.1 allows
local users to (1) delete arbitrary host devices via the
virDomainDeviceDettach API and a symlink attack on /dev in the container;
(2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a
symlink attack on /dev in the container; and cause a denial of service
(shutdown or reboot host OS) via the (3) virDomainShutdown or (4)
virDomainReboot API and a symlink attack on /dev/initctl in the container,
related to "paths under /proc/$PID/root" and the virInitctlSetRunLevel
function.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-6456?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libvirt | 14.04 LTS trusty | Not affected |
| 13.10 saucy | Fixed 1.1.1-0ubuntu8.11 |
| 13.04 raring | Ignored end of life |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2013-6456?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

1.0.1 and higher

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| libvirt | * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=a15d9aa37e0baa4677c605c7563ebd92d3de468c> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=268ef38d12b6bf4fdcbbe6f8c7dd6c2e4cc446f1> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=5daffc54b0815c49146cb6174c28954252542247> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=aaba652d2ba2a3a258c6b36d109ada59824cedce> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=4428224e0d60ce32cb81be45b79323912ce5b8dc> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=d0ddd54a6706b7bfbc2ff1c2d3352331a8857660> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=869961c1a2dc718d6272b3218e0263d58d4a6648> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=045ab83be86ab960ab8358d96de110e98930740c> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=06a0f6b81cb982d8b7789862ef2e197d68d9e6ab> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=40c8a8e92686fb5bf55fa1482b59309d3e5b96e3> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=599be6a6f93618ac5094e0283538ed827b5c7e5b> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=05b36162178f8bf43c5ca57568f154493701b209> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=6ecb7bc3aed7f60edad5289c9b0cfcf99eee6611> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=72a4c29ca72789b13de1ed9cb96df9fb2b0fdde4> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=83f83508e128275bd1b74988162dc6b9f86e00ee> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=398c88edfaef50b9b59eb2d9a61b07c9c940a661> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=dd055960df60c536957664f0ae3c591feecf7b09> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=14d69bd00e4455a1d174d14c5af73975cf9e904a> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6456)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-6456)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-6456)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-6456)

### Related Ubuntu Security Notices (USN)

+ [USN-2209-1](https://usn.ubuntu.com/USN-2209-1)
+ libvirt vulnerabilities
+ 7 May 2014

### Other references

* <http://security.libvirt.org/2013/0018.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-6456>