Homepage

Use After Free Affecting thunderbird package, versions <1:52.9.0-1

Severity

 Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
3.1% (86th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18319042
  • published26 Jul 2026
  • disclosed18 Oct 2018
Report a new vulnerability Found a mistake?

Introduced: 18 Oct 2018

CVE-2018-12363  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:52.9.0-1 or higher.

NVD Description

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

A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

References