{"schema_version":"1.7.5","id":"USN-6435-1","published":"2023-10-18T19:51:24Z","modified":"2026-06-25T13:30:28.123466145Z","related":["UBUNTU-CVE-2023-3446","UBUNTU-CVE-2023-3817"],"upstream":["CVE-2023-3446","CVE-2023-3817","UBUNTU-CVE-2023-3446","UBUNTU-CVE-2023-3817"],"summary":"openssl vulnerabilities","details":"It was discovered that OpenSSL incorrectly handled excessively large\nDiffie-Hellman parameters. An attacker could possibly use this issue\nto cause a denial of service. (CVE-2023-3446)\n\nBernd Edlinger discovered that OpenSSL incorrectly handled excessively\nlarge Diffie-Hellman parameters. An attacker could possibly use this\nissue to cause a denial of service. (CVE-2023-3817)\n","affected":[{"package":{"name":"openssl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.20+esm10"}]}],"versions":["1.0.2d-0ubuntu1","1.0.2d-0ubuntu2","1.0.2e-1ubuntu1","1.0.2f-2ubuntu1","1.0.2g-1ubuntu2","1.0.2g-1ubuntu3","1.0.2g-1ubuntu4","1.0.2g-1ubuntu4.1","1.0.2g-1ubuntu4.2","1.0.2g-1ubuntu4.4","1.0.2g-1ubuntu4.5","1.0.2g-1ubuntu4.6","1.0.2g-1ubuntu4.8","1.0.2g-1ubuntu4.9","1.0.2g-1ubuntu4.10","1.0.2g-1ubuntu4.11","1.0.2g-1ubuntu4.12","1.0.2g-1ubuntu4.13","1.0.2g-1ubuntu4.14","1.0.2g-1ubuntu4.15","1.0.2g-1ubuntu4.16","1.0.2g-1ubuntu4.17","1.0.2g-1ubuntu4.18","1.0.2g-1ubuntu4.19","1.0.2g-1ubuntu4.20","1.0.2g-1ubuntu4.20+esm1","1.0.2g-1ubuntu4.20+esm2","1.0.2g-1ubuntu4.20+esm3","1.0.2g-1ubuntu4.20+esm4","1.0.2g-1ubuntu4.20+esm5","1.0.2g-1ubuntu4.20+esm6","1.0.2g-1ubuntu4.20+esm7","1.0.2g-1ubuntu4.20+esm9"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libssl1.0.0","binary_version":"1.0.2g-1ubuntu4.20+esm10"},{"binary_name":"openssl","binary_version":"1.0.2g-1ubuntu4.20+esm10"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-3446","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2023-3817","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6435-1.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1-1ubuntu2.1~18.04.23+esm3"}]}],"versions":["1.0.2g-1ubuntu13","1.0.2g-1ubuntu14","1.0.2n-1ubuntu1","1.1.0g-2ubuntu1","1.1.0g-2ubuntu2","1.1.0g-2ubuntu3","1.1.0g-2ubuntu4","1.1.0g-2ubuntu4.1","1.1.0g-2ubuntu4.3","1.1.1-1ubuntu2.1~18.04.1","1.1.1-1ubuntu2.1~18.04.2","1.1.1-1ubuntu2.1~18.04.3","1.1.1-1ubuntu2.1~18.04.4","1.1.1-1ubuntu2.1~18.04.5","1.1.1-1ubuntu2.1~18.04.6","1.1.1-1ubuntu2.1~18.04.7","1.1.1-1ubuntu2.1~18.04.8","1.1.1-1ubuntu2.1~18.04.9","1.1.1-1ubuntu2.1~18.04.10","1.1.1-1ubuntu2.1~18.04.13","1.1.1-1ubuntu2.1~18.04.14","1.1.1-1ubuntu2.1~18.04.15","1.1.1-1ubuntu2.1~18.04.17","1.1.1-1ubuntu2.1~18.04.19","1.1.1-1ubuntu2.1~18.04.20","1.1.1-1ubuntu2.1~18.04.21","1.1.1-1ubuntu2.1~18.04.22","1.1.1-1ubuntu2.1~18.04.23","1.1.1-1ubuntu2.1~18.04.23+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libssl1.1","binary_version":"1.1.1-1ubuntu2.1~18.04.23+esm3"},{"binary_name":"openssl","binary_version":"1.1.1-1ubuntu2.1~18.04.23+esm3"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-3446","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2023-3817","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6435-1.json"}}],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6435-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3446"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3817"}]}