Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2021-02-26T02:05:50

Updated: 2024-08-03T19:14:09.953Z

Reserved: 2021-01-13T00:00:00

Link: CVE-2021-23960

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-26T03:15:13.917

Modified: 2024-11-21T05:52:06.457

Link: CVE-2021-23960

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-01-26T00:00:00Z

Links: CVE-2021-23960 - Bugzilla