---
title: "CVE-2011-3974\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-2011-3974?format=md
keywords: index, follow
---

# CVE-2011-3974

Publication date 2 October 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Integer signedness error in the decode\_residual\_inter function in cavsdec.c
in libavcodec in FFmpeg before 0.7.4 and 0.8.x before 0.8.3 allows remote
attackers to cause a denial of service (incorrect write operation and
application crash) via an invalid bitstream in a Chinese AVS video (aka
CAVS) file, a different vulnerability than CVE-2011-3362.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-3974?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ffmpeg | 11.10 oneiric | Not in release |
| 11.04 natty | Not in release |
| 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 8.04 LTS hardy | Ignored end of life |
| ffmpeg-extra | 11.10 oneiric | Not in release |
| 11.04 natty | Not in release |
| 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 8.04 LTS hardy | Not in release |
| libav | 11.10 oneiric | Not affected |
| 11.04 natty | Not affected |
| 10.10 maverick | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | Not in release |
| libav-extra | 11.10 oneiric | Not affected |
| 11.04 natty | Fixed 4:0.6.4-1ubuntu1 |
| 10.10 maverick | 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)
* [Patch details](https://ubuntu.com/security/CVE-2011-3974?format=md#patch-details)

## Notes

---

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

ffmpeg-extra in multiverse needs to have matching version
libav-extra is built with tarball produced by libav package
same commit as CVE-2011-3973
this is already fixed in CVE-2011-3362.patch

### 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 |
| --- | --- |
| ffmpeg | * Upstream:   <http://git.videolan.org/?p=ffmpeg.git;a=commit;h=bd968d260aef322fb32e254a3de0d2036c57bd56> * Vendor:   <http://lists.debian.org/debian-security-announce/2011/msg00216.html> |
| libav | * Upstream:   <http://git.libav.org/?p=libav.git;a=commit;h=4a71da0f3ab7f5542decd11c81994f849d5b2c78> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3974)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-3974)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-3974)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-3974)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-3974>