MFSA2020-56 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78.6 (CVE-2020-26973)
7
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
12/15/2020
12/16/2020
12/16/2020
01/14/2021
Description
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Solution(s)
- mozilla-thunderbird-upgrade-78_6
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