NSS is vulnerable to information disclosure. Timing differences when performing DSA signatures could eventually leak private keys.
bugzilla.mozilla.org/show_bug.cgi?id=1631576
lists.debian.org/debian-lts-announce/2020/09/msg00029.html
security.gentoo.org/glsa/202007-49
usn.ubuntu.com/4421-1/
www.debian.org/security/2020/dsa-4726
www.mozilla.org/security/advisories/mfsa2020-20/
www.mozilla.org/security/advisories/mfsa2020-21/
www.mozilla.org/security/advisories/mfsa2020-22/