Access Restriction Bypass Affecting firefox package, versions <50.0+build2-0ubuntu0.16.04.2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.54% (79th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-422155
  • published11 Jun 2018
  • disclosed11 Jun 2018

Introduced: 11 Jun 2018

CVE-2016-9075  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 50.0+build2-0ubuntu0.16.04.2 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.

An issue where WebExtensions can use the mozAddonManager API to elevate privilege due to privileged pages being allowed in the permissions list. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 50.