{"id":"USN-5168-1","summary":"nss vulnerability","details":"Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS\nsignatures. A remote attacker could use this issue to cause NSS to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n","modified":"2026-04-22T10:19:19.613713Z","published":"2021-12-01T16:49:18Z","related":["UBUNTU-CVE-2021-43527"],"upstream":["CVE-2021-43527","UBUNTU-CVE-2021-43527"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5168-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-43527"}],"affected":[{"package":{"name":"nss","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.13?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.35-2ubuntu2.13"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2:3.35-2ubuntu2.13","binary_name":"libnss3"},{"binary_version":"2:3.35-2ubuntu2.13","binary_name":"libnss3-tools"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5168-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2021-43527","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]}}},{"package":{"name":"nss","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nss@2:3.49.1-1ubuntu1.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.49.1-1ubuntu1.6"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2:3.49.1-1ubuntu1.6","binary_name":"libnss3"},{"binary_version":"2:3.49.1-1ubuntu1.6","binary_name":"libnss3-tools"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5168-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2021-43527","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]}}}],"schema_version":"1.7.5"}