---
title: "CVE-2013-4220\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-2013-4220?format=md
keywords: index, follow
---

# CVE-2013-4220

Publication date 25 August 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The bad\_mode function in arch/arm64/kernel/traps.c in the Linux kernel
before 3.9.5 on the ARM64 platform allows local users to cause a denial of
service (system crash) via vectors involving an attempted register access
that triggers an unexpected value in the Exception Syndrome Register (ESR).

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-4220?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| linux | 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not affected |
| linux-armadaxp | 13.04 raring | Not in release |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-ec2 | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Not affected |
| linux-fsl-imx51 | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| linux-linaro-omap | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-linaro-shared | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-linaro-vexpress | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-lts-quantal | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-lts-raring | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-mvl-dove | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| linux-qcm-msm | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| linux-ti-omap4 | 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |

---

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

## Notes

---

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

arm64 only, ignored

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4220)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-4220)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-4220)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-4220)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2013-4220>