Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.Referenceshttps://www.mozilla.org/security/advisories/mfsa2021-33/https://www.mozilla.org/security/advisories/mfsa2021-36/https://bugzilla.mozilla.org/show_bug.cgi?id=1715318https://security.gentoo.org/glsa/202202-03
