---
title: "CVE-2014-3756\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-2014-3756?format=md
keywords: index, follow
---

# CVE-2014-3756

Publication date 16 November 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 client in Mumble 1.2.x before 1.2.6 allows remote attackers to force
the loading of an external file and cause a denial of service (hang and
resource consumption) via a crafted string that is treated as rich-text by
a Qt widget, as demonstrated by the (1) user or (2) channel name in a Qt
dialog, (3) subject common name or (4) email address to the Certificate
Wizard, or (5) server name in a tooltip.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| mumble | 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 15.10 wily | Not affected |
| 15.04 vivid | Not affected |
| 14.10 utopic | Not affected |
| 14.04 LTS trusty | Fixed 1.2.4-0.2ubuntu1.1 |
| 13.10 saucy | Ignored end of life |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2014-3756?format=md#patch-details)

### 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 |
| --- | --- |
| mumble | * Upstream:   <http://mumble.info/security/Mumble-SA-2014-006.patch.sig> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3756)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-3756)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-3756)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-3756)

### Other references

* <http://mumble.info/security/Mumble-SA-2014-006.txt>
* <https://www.cve.org/CVERecord?id=CVE-2014-3756>