---
title: "CVE-2011-0992\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-2011-0992?format=md
keywords: index, follow
---

# CVE-2011-0992

Publication date 13 April 2011

Last updated 24 July 2024

---

Ubuntu priority

**Negligible**

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

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## Description

Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or
3.x before 3.99.3 is used, allows remote attackers to cause a denial of
service (plugin crash) or obtain sensitive information via vectors related
to member data in a resurrected MonoThread instance.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-0992?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| mono | 14.10 utopic | Not affected |
| 14.04 LTS trusty | Not affected |
| 13.10 saucy | Ignored end of life |
| 13.04 raring | Ignored end of life |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Fixed 2.10.8.1-1ubuntu2.3 |
| 11.10 oneiric | Ignored end of life |
| 11.04 natty | Ignored end of life |
| 10.10 maverick | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| 9.10 karmic | Ignored end of life |
| 8.04 LTS hardy | Ignored end of life |
| 6.06 LTS dapper | 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-2011-0992?format=md#patch-details)

## Notes

---

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

upstream note: The bug (and fix) is in mono source code but can
only be exploited (by untrusted applications) when used by
Moonlight.
Setting severity to negligible.

### 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 |
| --- | --- |
| mono | * Upstream:   [722f989](https://github.com/mono/mono/commit/722f9890f09aadfc37ae479e7d946d5fc5ef7b91) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0992)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-0992)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-0992)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-0992)

### Related Ubuntu Security Notices (USN)

+ [USN-2547-1](https://usn.ubuntu.com/USN-2547-1)
+ Mono vulnerabilities
+ 24 March 2015

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-0992>