{"id":"USN-4990-1","summary":"nettle vulnerabilities","details":"It was discovered that Nettle incorrectly handled RSA decryption. A remote\nattacker could possibly use this issue to cause Nettle to crash, resulting\nin a denial of service. (CVE-2021-3580)\n\nIt was discovered that Nettle incorrectly handled certain padding oracles.\nA remote attacker could possibly use this issue to perform a variant of the\nBleichenbacher attack. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2018-16869)\n","modified":"2026-04-22T10:15:40.013204Z","published":"2021-06-17T11:01:57Z","related":["UBUNTU-CVE-2018-16869","UBUNTU-CVE-2021-3580"],"upstream":["CVE-2018-16869","CVE-2021-3580","UBUNTU-CVE-2018-16869","UBUNTU-CVE-2021-3580"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4990-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16869"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3580"}],"affected":[{"package":{"name":"nettle","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nettle@3.4.1-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1-0ubuntu0.18.04.1"}]}],"versions":["3.3-2","3.4-1","3.4-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.4.1-0ubuntu0.18.04.1","binary_name":"libhogweed4"},{"binary_version":"3.4.1-0ubuntu0.18.04.1","binary_name":"libnettle6"},{"binary_version":"3.4.1-0ubuntu0.18.04.1","binary_name":"nettle-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4990-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2018-16869"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-3580"}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"nettle","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nettle@3.5.1+really3.5.1-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.1+really3.5.1-2ubuntu0.2"}]}],"versions":["3.4.1-1","3.5.1+really3.5.1-2","3.5.1+really3.5.1-2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.5.1+really3.5.1-2ubuntu0.2","binary_name":"libhogweed5"},{"binary_version":"3.5.1+really3.5.1-2ubuntu0.2","binary_name":"libnettle7"},{"binary_version":"3.5.1+really3.5.1-2ubuntu0.2","binary_name":"nettle-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4990-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-3580"}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.5"}