---
title: "CVE-2016-1706\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-2016-1706?format=md
keywords: index, follow
---

# CVE-2016-1706

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

**9.6 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2016-1706?format=md#impact-score)

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## Description

The PPAPI implementation in Google Chrome before 52.0.2743.82 does not
validate the origin of IPC messages to the plugin broker process that
should have come from the browser process, which allows remote attackers to
bypass a sandbox protection mechanism via an unexpected message type,
related to broker\_process\_dispatcher.cc, ppapi\_plugin\_process\_host.cc,
ppapi\_thread.cc, and render\_frame\_message\_filter.cc.

## 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**

9.6 · Critical

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.6 · Critical |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1706)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2016-1706)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2016-1706)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2016-1706)

### 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-2016-1706>