---
title: "CVE-2014-1539\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-2014-1539?format=md
keywords: index, follow
---

# CVE-2014-1539

Publication date 11 June 2014

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

Toggle side navigation

## Description

Mozilla Firefox before 30.0 and Thunderbird through 24.6 on OS X do not
ensure visibility of the cursor after interaction with a Flash object and a
DIV element, which makes it easier for remote attackers to conduct
clickjacking attacks via JavaScript code that produces a fake cursor image.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2014-1539?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 14.04 LTS trusty | Not in release |
| 13.10 saucy | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Ignored end of life |

---

* [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

---

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

Only affects Firefox on OS X

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1539)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-1539)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-1539)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-1539)

### Other references

* <http://www.mozilla.org/security/announce/2014/mfsa2014-50.html>
* <https://www.cve.org/CVERecord?id=CVE-2014-1539>