Race Condition Affecting firefox package, versions <0:91.4.0-1.0.1.el7_9
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Test your applications- Snyk ID SNYK-ORACLE7-FIREFOX-2597306
- published 10 Apr 2022
- disclosed 8 Dec 2021
Introduced: 8 Dec 2021
CVE-2021-43538 Open this link in a new tabHow to fix?
Upgrade Oracle:7 firefox to version 0:91.4.0-1.0.1.el7_9 or higher.
This issue was patched in ELSA-2021-5014.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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://linux.oracle.com/cve/CVE-2021-43538.html
- https://linux.oracle.com/errata/ELSA-2021-5013.html
- https://linux.oracle.com/errata/ELSA-2021-5014.html
- https://linux.oracle.com/errata/ELSA-2021-5045.html
- https://linux.oracle.com/errata/ELSA-2021-5046.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739091
- https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14
- https://www.debian.org/security/2021/dsa-5026
- https://www.debian.org/security/2022/dsa-5034
- https://www.mozilla.org/security/advisories/mfsa2021-52/
- https://www.mozilla.org/security/advisories/mfsa2021-53/
- https://www.mozilla.org/security/advisories/mfsa2021-54/