{"schema_version":"1.7.5","id":"CVE-2020-12399","published":"2020-07-09T15:15:10.757Z","modified":"2026-03-15T22:32:28.932516Z","related":["SUSE-SU-2020:14418-1","SUSE-SU-2020:1677-1","SUSE-SU-2020:1839-1","openSUSE-SU-2020:0854-1","openSUSE-SU-2024:10600-1","openSUSE-SU-2024:11058-1","openSUSE-SU-2024:14572-1"],"details":"NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.","affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12399.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"77.0"}]},{"events":[{"introduced":"0"},{"fixed":"68.9.0"}]},{"events":[{"introduced":"0"},{"fixed":"68.9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}]}}],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-22/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-49"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4421-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4726"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-20/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-21/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1631576"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"}]}