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Use After Free Affecting firefox package, versions <54.0+build3-0ubuntu0.16.04.1

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.01% (85th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-424637
  • published11 Jun 2018
  • disclosed11 Jun 2018
Report a new vulnerability Found a mistake?

Introduced: 11 Jun 2018

CVE-2017-7750  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 54.0+build3-0ubuntu0.16.04.1 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 use-after-free vulnerability during video control operations when a "<track>" element holds a reference to an older window if that window has been replaced in the DOM. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.