MFSA2021-53 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.4.0 (CVE-2021-43543)
4
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
12/07/2021
12/09/2021
12/08/2021
01/05/2022
Description
Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Solution(s)
- mozilla-firefox-esr-upgrade-91_4
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