Use After Free Affecting firefox package, versions <64.0+build3-0ubuntu0.16.04.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.52% (78th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FIREFOX-422568
  • published13 Dec 2018
  • disclosed28 Feb 2019

Introduced: 13 Dec 2018

CVE-2018-18492  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 firefox to version 64.0+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 can occur after deleting a selection element due to a weak reference to the select element in the options collection. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.