---
title: "CVE-2008-5822\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-2008-5822?format=md
keywords: index, follow
---

# CVE-2008-5822

Publication date 2 January 2009

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

Memory leak in Libxul, as used in Mozilla Firefox 3.0.5 and other products,
allows remote attackers to cause a denial of service (memory consumption
and browser hang) via a long CLASS attribute in an HR element in an HTML
document.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2008-5822?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| xulrunner | 9.10 karmic | Ignored |
| 9.04 jaunty | Ignored |
| 8.10 intrepid | Ignored |
| 8.04 LTS hardy | Ignored |
| 7.10 gutsy | Ignored end of life |
| 6.06 LTS dapper | Not in release |
| xulrunner-1.9 | 9.10 karmic | Not in release |
| 9.04 jaunty | Ignored |
| 8.10 intrepid | Ignored |
| 8.04 LTS hardy | Ignored |
| 7.10 gutsy | Ignored end of life |
| 6.06 LTS dapper | 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)

CVEs in Firefox are tracked in the xulrunner source packages. The
mapping of xulrunner sources to firefox is:
xulrunner (1.8.0): firefox (1.5) - Ubuntu 6.06 LTS
xulrunner (1.8.1): firefox (2.0) - Ubuntu 6.10 - 8.04 LTS
xulrunner-1.9: firefox-3.0
xulrunner-1.9.1: firefox-3.5
Ubuntu 6.06 LTS and 10.04 LTS uses the embedded xulrunner and not
the system xulrunner-1.9.2, so it is tracked in the firefox source package.
based on packetstormsecurity.org, not a memory leak, but a large
memory allocation due to '"A" x 20000000' for the class attribute in an HR
element. Ignoring.

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5822)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2008-5822)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2008-5822)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2008-5822)

### Other references

* <http://www.packetstormsecurity.org/0812-exploits/mzff_libxul_ml.txt>
* <https://www.cve.org/CVERecord?id=CVE-2008-5822>