A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2021-12-08T21:20:35

Updated: 2024-08-04T03:55:29.311Z

Reserved: 2021-11-08T00:00:00

Link: CVE-2021-43535

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-12-08T22:15:09.517

Modified: 2022-03-17T19:58:14.983

Link: CVE-2021-43535

cve-icon Redhat

Severity : Important

Publid Date: 2021-11-02T00:00:00Z

Links: CVE-2021-43535 - Bugzilla