CVE-2021-43538

Description

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

References

https://www.mozilla.org/security/advisories/mfsa2021-54/

https://www.mozilla.org/security/advisories/mfsa2021-53/

https://www.mozilla.org/security/advisories/mfsa2021-52/

https://www.debian.org/security/2022/dsa-5034

https://www.debian.org/security/2021/dsa-5026

https://security.gentoo.org/glsa/202208-14

https://security.gentoo.org/glsa/202202-03

https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1739091

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3