{"id":"USN-4478-1","summary":"python-rsa vulnerability","details":"It was discovered that Python-RSA incorrectly handled certain ciphertexts.\nAn attacker could possibly use this issue to obtain sensitive information.\n","modified":"2026-02-10T04:41:54Z","published":"2020-08-31T17:48:35Z","related":["UBUNTU-CVE-2020-13757"],"upstream":["CVE-2020-13757","UBUNTU-CVE-2020-13757"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4478-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-13757"}],"affected":[{"package":{"name":"python-rsa","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/python-rsa@3.1.2-1ubuntu0.1+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.2-1ubuntu0.1+esm1"}]}],"versions":["3.1.2-1","3.1.2-1ubuntu0.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-rsa","binary_version":"3.1.2-1ubuntu0.1+esm1"},{"binary_name":"python3-rsa","binary_version":"3.1.2-1ubuntu0.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4478-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2020-13757","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}]}}}],"schema_version":"1.7.3"}