---
title: "CVE-2013-0856\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-2013-0856?format=md
keywords: index, follow
---

# CVE-2013-0856

Publication date 7 December 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The lpc\_prediction function in libavcodec/alac.c in FFmpeg before 1.1
allows remote attackers to have an unspecified impact via crafted Apple
Lossless Audio Codec (ALAC) data, related to a large nb\_samples value.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-0856?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ffmpeg | 13.10 saucy | Not in release |
| 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| ffmpeg-extra | 13.10 saucy | Not in release |
| 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored |
| libav | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| libav-extra | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | 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

---

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

libav and ffmpeg codebases have diverged to the point of
not being able to track both using the same CVE numbers.
Marking this CVE as not-affected for libav.

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0856)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-0856)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-0856)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-0856)

### Other references

* <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=fd4f4923cce6a2cbf4f48640b4ac706e614a1594>
* <https://www.cve.org/CVERecord?id=CVE-2013-0856>