{"id":"UBUNTU-CVE-2020-12400","details":"When converting coordinates from projective to affine, the modular inversion was not performed in constant time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox \u003c 80 and Firefox for Android \u003c 80.","modified":"2026-04-22T14:00:46.980529Z","published":"2020-08-05T00:00:00Z","related":["USN-4455-1","USN-4474-1"],"upstream":["CVE-2020-12400"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12400"},{"type":"REPORT","url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.55_release_notes"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4455-1"},{"type":"REPORT","url":"https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/#CVE-2020-12400"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4474-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-12400"}],"affected":[{"package":{"name":"nss","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm7?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.28.4-0ubuntu0.14.04.5+esm7"}]}],"versions":["2:3.15.1-1ubuntu1","2:3.15.2-1","2:3.15.3-1","2:3.15.3.1-1","2:3.15.3.1-1.1","2:3.15.3.1-1.1ubuntu1","2:3.15.4-1ubuntu3","2:3.15.4-1ubuntu4","2:3.15.4-1ubuntu5","2:3.15.4-1ubuntu6","2:3.15.4-1ubuntu7","2:3.15.4-1ubuntu7.1","2:3.17-0ubuntu0.14.04.1","2:3.17.1-0ubuntu0.14.04.1","2:3.17.1-0ubuntu0.14.04.2","2:3.17.4-0ubuntu0.14.04.1","2:3.19.2-0ubuntu0.14.04.1","2:3.19.2.1-0ubuntu0.14.04.1","2:3.19.2.1-0ubuntu0.14.04.2","2:3.21-0ubuntu0.14.04.1","2:3.21-0ubuntu0.14.04.2","2:3.23-0ubuntu0.14.04.1","2:3.26.2-0ubuntu0.14.04.3","2:3.28.4-0ubuntu0.14.04.1","2:3.28.4-0ubuntu0.14.04.2","2:3.28.4-0ubuntu0.14.04.3","2:3.28.4-0ubuntu0.14.04.4","2:3.28.4-0ubuntu0.14.04.5","2:3.28.4-0ubuntu0.14.04.5+esm1","2:3.28.4-0ubuntu0.14.04.5+esm2","2:3.28.4-0ubuntu0.14.04.5+esm3","2:3.28.4-0ubuntu0.14.04.5+esm4","2:3.28.4-0ubuntu0.14.04.5+esm5","2:3.28.4-0ubuntu0.14.04.5+esm6"],"ecosystem_specific":{"binaries":[{"binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm7","binary_name":"libnss3"},{"binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm7","binary_name":"libnss3-1d"},{"binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm7","binary_name":"libnss3-nssdb"},{"binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm7","binary_name":"libnss3-tools"}],"availability":"Available 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