Provide references for CVE-2020-26976.
Where can I find more information about CVE-2020-26976?
References are available at: https://www.mozilla.org/security/advisories/mfsa2020-54/, https://bugzilla.mozilla.org/show_bug.cgi?id=1674343, https://www.debian.org/security/2021/dsa-4840, https://security.gentoo.org/glsa/202102-02, https://www.debian.org/security/2021/dsa-4842, https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html, https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html.