---
title: "CVE-2016-1621\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-2016-1621?format=md
keywords: index, follow
---

# CVE-2016-1621

Publication date 12 March 2016

Last updated 25 August 2025

---

Ubuntu priority

**High**

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

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2016-1621?format=md#impact-score)

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## Description

libvpx in mediaserver in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49H,
and 6.0 before 2016-03-01 allows remote attackers to execute arbitrary code
or cause a denial of service (memory corruption) via a crafted media file,
related to libwebm/mkvparser.cpp and other files, aka internal bug
23452792.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| android | 18.04 LTS bionic | Not in release |
| 17.10 artful | Not in release |
| 17.04 zesty | Fixed 20160307-0742-0ubuntu3 |
| 16.10 yakkety | Fixed 20160307-0742-0ubuntu3 |
| 16.04 LTS xenial | Fixed 20160307-0742-0ubuntu3 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | 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-2016-1621?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 |
| --- | --- |
| android | * Upstream:   <https://android.googlesource.com/platform/external/libvpx/+/04839626ed859623901ebd3a5fd483982186b59d> * Upstream:   <https://android.googlesource.com/platform/external/libvpx/+/5a9753fca56f0eeb9f61e342b2fccffc364f9426> * Upstream:   <https://android.googlesource.com/platform/frameworks/av/+/5a6788730acfc6fd8f4a6ef89d2c376572a26b55> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1621)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-1621)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-1621)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-1621)

### Other references

* <http://source.android.com/security/bulletin/2016-03-01.html>
* <https://www.cve.org/CVERecord?id=CVE-2016-1621>