Access Restriction Bypass Affecting firefox package, versions <46.0+build5-0ubuntu0.16.04.2


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.68% (81st percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-423111
  • published30 Apr 2016
  • disclosed30 Apr 2016

Introduced: 30 Apr 2016

CVE-2016-2817  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 46.0+build5-0ubuntu0.16.04.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The WebExtension sandbox feature in browser/components/extensions/ext-tabs.js in Mozilla Firefox before 46.0 does not properly restrict principal inheritance during chrome.tabs.create and chrome.tabs.update API calls, which allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted extension that accesses a (1) javascript: or (2) data: URL.

CVSS Scores

version 3.1