{"id":"USN-4455-1","summary":"nss vulnerabilities","details":"It was discovered that NSS incorrectly handled certain signatures.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)\n","modified":"2026-02-10T04:41:54Z","published":"2020-08-10T17:28:58Z","related":["UBUNTU-CVE-2020-12400","UBUNTU-CVE-2020-12401","UBUNTU-CVE-2020-6829"],"upstream":["CVE-2020-12400","CVE-2020-12401","CVE-2020-6829","UBUNTU-CVE-2020-12400","UBUNTU-CVE-2020-12401","UBUNTU-CVE-2020-6829"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4455-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-6829"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12400"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12401"}],"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":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","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-dev"},{"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"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2020-6829","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12400","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12401","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4455-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.13?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.28.4-0ubuntu0.16.04.13"}]}],"versions":["2:3.19.2-1ubuntu1","2:3.19.2.1-0ubuntu1","2:3.21-1ubuntu2","2:3.21-1ubuntu3","2:3.21-1ubuntu4","2:3.23-0ubuntu0.16.04.1","2:3.26.2-0ubuntu0.16.04.2","2:3.28.4-0ubuntu0.16.04.1","2:3.28.4-0ubuntu0.16.04.2","2:3.28.4-0ubuntu0.16.04.3","2:3.28.4-0ubuntu0.16.04.4","2:3.28.4-0ubuntu0.16.04.5","2:3.28.4-0ubuntu0.16.04.6","2:3.28.4-0ubuntu0.16.04.8","2:3.28.4-0ubuntu0.16.04.9","2:3.28.4-0ubuntu0.16.04.10","2:3.28.4-0ubuntu0.16.04.11","2:3.28.4-0ubuntu0.16.04.12"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:3.28.4-0ubuntu0.16.04.13","binary_name":"libnss3"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.13","binary_name":"libnss3-1d"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.13","binary_name":"libnss3-dev"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.13","binary_name":"libnss3-nssdb"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.13","binary_name":"libnss3-tools"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-6829","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12400","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12401","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4455-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.11?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.35-2ubuntu2.11"}]}],"versions":["2:3.32-1ubuntu3","2:3.34-1ubuntu1","2:3.35-2ubuntu2","2:3.35-2ubuntu2.1","2:3.35-2ubuntu2.2","2:3.35-2ubuntu2.3","2:3.35-2ubuntu2.5","2:3.35-2ubuntu2.6","2:3.35-2ubuntu2.7","2:3.35-2ubuntu2.8","2:3.35-2ubuntu2.9"],"ecosystem_specific":{"availability":"No 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required","binaries":[{"binary_version":"2:3.35-2ubuntu2.11","binary_name":"libnss3"},{"binary_version":"2:3.35-2ubuntu2.11","binary_name":"libnss3-dev"},{"binary_version":"2:3.35-2ubuntu2.11","binary_name":"libnss3-tools"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-6829","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12400","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-12401","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4455-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.49.1-1ubuntu1.4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.49.1-1ubuntu1.4"}]}],"versions":["2:3.45-1ubuntu2","2:3.47-1ubuntu1","2:3.47-1ubuntu2","2:3.48-1ubuntu1","2:3.49.1-1ubuntu1","2:3.49.1-1ubuntu1.1","2:3.49.1-1ubuntu1.2"],"ecosystem_specific":{"availability":"No 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