---
title: "CVE-2016-5131\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-2016-5131?format=md
keywords: index, follow
---

# CVE-2016-5131

Publication date 23 July 2016

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2016-5131?format=md#impact-score)

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## Description

Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google
Chrome before 52.0.2743.82, allows remote attackers to cause a denial of
service or possibly have unspecified other impact via vectors related to
the XPointer range-to function.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| chromium-browser | 17.04 zesty | Fixed 53.0.2785.143-0ubuntu1.1307 |
| 16.10 yakkety | Fixed 53.0.2785.143-0ubuntu1.1307 |
| 16.04 LTS xenial | Fixed 52.0.2743.116-0ubuntu0.16.04.1.1250 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Fixed 52.0.2743.116-0ubuntu0.14.04.1.1134 |
| 12.04 LTS precise | Ignored |
| libxml2 | 17.04 zesty | Not affected |
| 16.10 yakkety | Fixed 2.9.4+dfsg1-2ubuntu0.1 |
| 16.04 LTS xenial | Fixed 2.9.3+dfsg1-1ubuntu0.2 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Fixed 2.9.1+dfsg1-3ubuntu4.9 |
| 12.04 LTS precise | Fixed 2.7.8.dfsg-5.1ubuntu4.17 |
| oxide-qt | 17.04 zesty | Fixed 1.16.7-0ubuntu1 |
| 16.10 yakkety | Fixed 1.16.7-0ubuntu1 |
| 16.04 LTS xenial | Fixed 1.16.5-0ubuntu0.16.04.1 |
| 15.10 wily | Ignored end of life |
| 14.04 LTS trusty | Fixed 1.16.5-0ubuntu0.14.04.1 |
| 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-2016-5131?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 |
| --- | --- |
| chromium-browser | * Upstream:   <https://codereview.chromium.org/2127493002> |
| libxml2 | * Upstream:   [?id=9ab](https://git.gnome.org/browse/libxml2/commit/?id=9ab01a277d71f54d3143c2cf333c5c2e9aaedd9e) * Upstream:   [?id=a00](https://git.gnome.org/browse/libxml2/commit/?id=a005199330b86dada19d162cae15ef9bdcb6baa8) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5131)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-5131)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-5131)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-5131)

### Related Ubuntu Security Notices (USN)

+ [USN-3041-1](https://usn.ubuntu.com/USN-3041-1)
+ Oxide vulnerabilities
+ 5 August 2016

+ [USN-3235-1](https://usn.ubuntu.com/USN-3235-1)
+ libxml2 vulnerabilities
+ 16 March 2017

### Other references

* <https://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html>
* <https://www.cve.org/CVERecord?id=CVE-2016-5131>