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Red Hat: CVE-2021-43538: Missing fullscreen and pointer lock notification when requesting both (Multiple Advisories)

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Red Hat: CVE-2021-43538: Missing fullscreen and pointer lock notification when requesting both (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
12/08/2021
Created
12/13/2021
Added
12/09/2021
Modified
12/15/2023

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.

Solution(s)

  • redhat-upgrade-firefox
  • redhat-upgrade-firefox-debuginfo
  • redhat-upgrade-firefox-debugsource
  • redhat-upgrade-thunderbird
  • redhat-upgrade-thunderbird-debuginfo
  • redhat-upgrade-thunderbird-debugsource

References

  • DSA-5026
  • DSA-5034
  • CVE-2021-43538
  • RHSA-2021:5013
  • RHSA-2021:5014
  • RHSA-2021:5015
  • RHSA-2021:5016
  • RHSA-2021:5045
  • RHSA-2021:5046
  • RHSA-2021:5047
  • RHSA-2021:5048
View more

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