---
title: "CVE-2012-4216\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-2012-4216?format=md
keywords: index, follow
---

# CVE-2012-4216

Publication date 21 November 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Use-after-free vulnerability in the gfxFont::GetFontEntry function in
Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird
before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14
allows remote attackers to execute arbitrary code or cause a denial of
service (heap memory corruption) via unspecified vectors.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-4216?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Fixed 17.0+build2-0ubuntu0.12.10.1 |
| 12.04 LTS precise | Fixed 17.0+build2-0ubuntu0.12.04.1 |
| 11.10 oneiric | Fixed 17.0+build2-0ubuntu0.11.10.1 |
| 10.04 LTS lucid | Fixed 17.0+build2-0ubuntu0.10.04.1 |
| 8.04 LTS hardy | Ignored end of life |
| seamonkey | 13.10 saucy | Not in release |
| 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 11.10 oneiric | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| 8.04 LTS hardy | Ignored end of life |
| thunderbird | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Fixed 17.0+build2-0ubuntu0.12.10.1 |
| 12.04 LTS precise | Fixed 17.0+build2-0ubuntu0.12.04.1 |
| 11.10 oneiric | Fixed 17.0+build2-0ubuntu0.11.10.1 |
| 10.04 LTS lucid | Fixed 17.0+build2-0ubuntu0.10.04.1 |
| 8.04 LTS hardy | Ignored end of life |
| xulrunner-1.9.2 | 13.10 saucy | Not in release |
| 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 11.10 oneiric | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| 8.04 LTS hardy | Ignored end of life |
| xulrunner-2.0 | 13.10 saucy | Not in release |
| 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 11.10 oneiric | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | 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)

xulrunner-1.9.2 unmaintained upstream (see README.mozilla for
details)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4216)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-4216)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-4216)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-4216)

### Related Ubuntu Security Notices (USN)

+ [USN-1638-1](https://usn.ubuntu.com/USN-1638-1)
+ Firefox vulnerabilities
+ 21 November 2012

+ [USN-1636-1](https://usn.ubuntu.com/USN-1636-1)
+ Thunderbird vulnerabilities
+ 21 November 2012

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2012-4216>