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CVE-2021-43538

CVSS v3.1 4.3 (Medium)
43% Progress
CVSS v2.0 4.3 (Medium)
43% Progress
EPSS 0.49 % (77th)
0.49% Progress
Affected Products 4
Advisories 31
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2021-12-08 22:15:09
(2 years ago)
Updated Date
2022-12-09 15:55:13
(21 months ago)

Affected Products

Debian

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 95.0 version cpe:2.3:a:mozilla:firefox < 95.0
  Mozilla Firefox Esr prior 91.4.0 version cpe:2.3:a:mozilla:firefox_esr < 91.4.0
  Mozilla Thunderbird prior 91.4.0 version cpe:2.3:a:mozilla:thunderbird < 91.4.0

Configuration #2

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0
  Debian Linux 10.0 cpe:2.3:o:debian:debian_linux:10.0
  Debian Linux 11.0 cpe:2.3:o:debian:debian_linux:11.0