{"id":"USN-8947-1","summary":"nss update","details":"This update removes the \"emSign ECC Root CA - G3\" and \"Comodo AAA Services\nroot\" CA certificate due to intermediate CA certificates being compromised.","modified":"2026-10-22T04:30:58.314625702Z","published":"2026-10-21T17:40:27Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8947-1"},{"type":"REPORT","url":"https://bugs.launchpad.net/bugs/2171737"}],"affected":[{"package":{"name":"nss","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/nss?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.28.4-0ubuntu0.14.04.5+esm14"}]}],"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","2:3.28.4-0ubuntu0.14.04.5+esm7","2:3.28.4-0ubuntu0.14.04.5+esm8","2:3.28.4-0ubuntu0.14.04.5+esm9","2:3.28.4-0ubuntu0.14.04.5+esm10","2:3.28.4-0ubuntu0.14.04.5+esm11","2:3.28.4-0ubuntu0.14.04.5+esm12","2:3.28.4-0ubuntu0.14.04.5+esm13"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss3","binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm14"},{"binary_name":"libnss3-1d","binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm14"},{"binary_name":"libnss3-nssdb","binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm14"},{"binary_version":"2:3.28.4-0ubuntu0.14.04.5+esm14","binary_name":"libnss3-tools"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8947-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/nss?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.28.4-0ubuntu0.16.04.14+esm6"}]}],"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","2:3.28.4-0ubuntu0.16.04.13","2:3.28.4-0ubuntu0.16.04.14","2:3.28.4-0ubuntu0.16.04.14+esm1","2:3.28.4-0ubuntu0.16.04.14+esm2","2:3.28.4-0ubuntu0.16.04.14+esm3","2:3.28.4-0ubuntu0.16.04.14+esm4","2:3.28.4-0ubuntu0.16.04.14+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"2:3.28.4-0ubuntu0.16.04.14+esm6","binary_name":"libnss3"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.14+esm6","binary_name":"libnss3-1d"},{"binary_version":"2:3.28.4-0ubuntu0.16.04.14+esm6","binary_name":"libnss3-nssdb"},{"binary_name":"libnss3-tools","binary_version":"2:3.28.4-0ubuntu0.16.04.14+esm6"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8947-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/nss?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.35-2ubuntu2.16+esm2"}]}],"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","2:3.35-2ubuntu2.11","2:3.35-2ubuntu2.12","2:3.35-2ubuntu2.13","2:3.35-2ubuntu2.14","2:3.35-2ubuntu2.15","2:3.35-2ubuntu2.16","2:3.35-2ubuntu2.16+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss3","binary_version":"2:3.35-2ubuntu2.16+esm2"},{"binary_name":"libnss3-tools","binary_version":"2:3.35-2ubuntu2.16+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8947-1.json"}},{"package":{"name":"nss","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/nss?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.98-0ubuntu0.20.04.2+esm2"}]}],"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","2:3.49.1-1ubuntu1.4","2:3.49.1-1ubuntu1.5","2:3.49.1-1ubuntu1.6","2:3.49.1-1ubuntu1.7","2:3.49.1-1ubuntu1.8","2:3.49.1-1ubuntu1.9","2:3.98-0ubuntu0.20.04.1","2:3.98-0ubuntu0.20.04.2","2:3.98-0ubuntu0.20.04.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss3","binary_version":"2:3.98-0ubuntu0.20.04.2+esm2"},{"binary_version":"2:3.98-0ubuntu0.20.04.2+esm2","binary_name":"libnss3-tools"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8947-1.json","cves_map":{"cves":[],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}},{"package":{"name":"nss","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/nss?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.98-0ubuntu0.22.04.5"}]}],"versions":["2:3.68-1ubuntu1","2:3.68-1ubuntu2","2:3.68.2-0ubuntu1","2:3.68.2-0ubuntu1.1","2:3.68.2-0ubuntu1.2","2:3.98-0ubuntu0.22.04.1","2:3.98-0ubuntu0.22.04.2","2:3.98-0ubuntu0.22.04.3","2:3.98-0ubuntu0.22.04.4"],"ecosystem_specific":{"availability":"No subscription 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