{"id":"USN-4376-1","summary":"openssl vulnerabilities","details":"Cesar Pereida García, Sohaib ul Hassan, Nicola Tuveri, Iaroslav Gridin,\nAlejandro Cabrera Aldaya, and Billy Brumley discovered that OpenSSL\nincorrectly handled ECDSA signatures. An attacker could possibly use this\nissue to perform a timing side-channel attack and recover private ECDSA\nkeys. (CVE-2019-1547)\n\nMatt Caswell discovered that OpenSSL incorrectly handled the random number\ngenerator (RNG). This may result in applications that use the fork() system\ncall sharing the same RNG state between the parent and the child, contrary\nto expectations. This issue only affected Ubuntu 18.04 LTS and Ubuntu\n19.10. (CVE-2019-1549)\n\nGuido Vranken discovered that OpenSSL incorrectly performed the x86_64\nMontgomery squaring procedure. While unlikely, a remote attacker could\npossibly use this issue to recover private keys. (CVE-2019-1551)\n\nBernd Edlinger discovered that OpenSSL incorrectly handled certain\ndecryption functions. In certain scenarios, a remote attacker could\npossibly use this issue to perform a padding oracle attack and decrypt\ntraffic. (CVE-2019-1563)\n","modified":"2026-04-24T09:18:12.992684847Z","published":"2020-05-28T12:07:08Z","related":["UBUNTU-CVE-2019-1547","UBUNTU-CVE-2019-1549","UBUNTU-CVE-2019-1551","UBUNTU-CVE-2019-1563"],"upstream":["CVE-2019-1547","CVE-2019-1549","CVE-2019-1551","UBUNTU-CVE-2019-1547","UBUNTU-CVE-2019-1549","UBUNTU-CVE-2019-1551"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4376-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-1547"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-1549"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-1551"}],"affected":[{"package":{"name":"openssl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/openssl@1.0.2g-1ubuntu4.16?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2g-1ubuntu4.16"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libssl1.0.0","binary_version":"1.0.2g-1ubuntu4.16"},{"binary_name":"openssl","binary_version":"1.0.2g-1ubuntu4.16"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"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":"low"}],"id":"CVE-2019-1547"},{"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":"low"}],"id":"CVE-2019-1551"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4376-1.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openssl@1.1.1-1ubuntu2.1~18.04.6?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1-1ubuntu2.1~18.04.6"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libssl1.1","binary_version":"1.1.1-1ubuntu2.1~18.04.6"},{"binary_name":"openssl","binary_version":"1.1.1-1ubuntu2.1~18.04.6"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"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":"low"}],"id":"CVE-2019-1547"},{"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":"low"}],"id":"CVE-2019-1549"},{"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":"low"}],"id":"CVE-2019-1551"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4376-1.json"}}],"schema_version":"1.7.5"}