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Incorrect Permission Assignment for Critical Resource Affecting firefox package, versions <63.0+build2-0ubuntu0.16.04.2

Severity

 Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.23% (90th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-424093
  • published28 Oct 2018
  • disclosed28 Feb 2019
Report a new vulnerability Found a mistake?

Introduced: 28 Oct 2018

CVE-2018-12396  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 63.0+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.

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.