---
title: "CVE-2016-1957\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-2016-1957?format=md
keywords: index, follow
---

# CVE-2016-1957

Publication date 8 March 2016

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**4.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2016-1957?format=md#impact-score)

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## Description

Memory leak in libstagefright in Mozilla Firefox before 45.0 and Firefox
ESR 38.x before 38.7 allows remote attackers to cause a denial of service
(memory consumption) via an MPEG-4 file that triggers a delete operation on
an array.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 16.04 LTS xenial | Not affected |
| 15.10 wily | Fixed 45.0+build2-0ubuntu0.15.10.1 |
| 14.04 LTS trusty | Fixed 45.0+build2-0ubuntu0.14.04.1 |
| 12.04 LTS precise | Fixed 45.0+build2-0ubuntu0.12.04.1 |
| thunderbird | 16.04 LTS xenial | Fixed 1:38.7.2+build1-0ubuntu0.16.04.1 |
| 15.10 wily | Fixed 1:38.7.2+build1-0ubuntu0.15.10.1 |
| 14.04 LTS trusty | Fixed 1:38.7.2+build1-0ubuntu0.14.04.1 |
| 12.04 LTS precise | Fixed 1:38.7.2+build1-0ubuntu0.12.04.1 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.3 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1957)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-1957)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-1957)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-1957)

### Related Ubuntu Security Notices (USN)

+ [USN-2917-1](https://usn.ubuntu.com/USN-2917-1)
+ Firefox vulnerabilities
+ 9 March 2016

+ [USN-2934-1](https://usn.ubuntu.com/USN-2934-1)
+ Thunderbird vulnerabilities
+ 27 April 2016

### Other references

* <https://www.mozilla.org/en-US/security/advisories/mfsa2016-20/>
* <https://www.cve.org/CVERecord?id=CVE-2016-1957>