---
title: "CVE-2016-5137\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-2016-5137?format=md
keywords: index, follow
---

# CVE-2016-5137

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

**4.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2016-5137?format=md#impact-score)

Toggle side navigation

## Description

The CSPSource::schemeMatches function in
WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy
(CSP) implementation in Blink, as used in Google Chrome before
52.0.2743.82, does not apply http :80 policies to https :443 URLs and does
not apply ws :80 policies to wss :443 URLs, which makes it easier for
remote attackers to determine whether a specific HSTS web site has been
visited by reading a CSP report. NOTE: this vulnerability is associated
with a specification change after CVE-2016-1617 resolution.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| chromium-browser | 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 |
| oxide-qt | 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)

## 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 | Low |
  | Integrity impact | None |
  | Availability impact | None |
* 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:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5137)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-5137)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-5137)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-5137)

### Related Ubuntu Security Notices (USN)

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

### Other references

* <https://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html>
* <https://www.cve.org/CVERecord?id=CVE-2016-5137>