Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1684020 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-03/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-04/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-05/ Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2021-02-26T02:10:45

Updated: 2021-02-26T02:10:45

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


Link: CVE-2021-23954

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-02-26T03:15:13.510

Modified: 2021-03-03T20:58:49.663


Link: CVE-2021-23954

JSON object: View

cve-icon Redhat Information

No data.

CWE