{"id":"USN-4245-1","summary":"python-pysaml2 vulnerability","details":"It was discovered that PySAML2 incorrectly handled certain SAML files.\nAn attacker could possibly use this issue to bypass signature verification\nwith arbitrary data.\n","modified":"2026-02-10T04:41:45Z","published":"2020-01-21T16:41:42Z","related":["UBUNTU-CVE-2020-5390"],"upstream":["CVE-2020-5390","UBUNTU-CVE-2020-5390"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4245-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-5390"}],"affected":[{"package":{"name":"python-pysaml2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/python-pysaml2@3.0.0-3ubuntu1.16.04.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.0-3ubuntu1.16.04.4"}]}],"versions":["2.4.0-0ubuntu2","3.0.0-3ubuntu1","3.0.0-3ubuntu1.16.04.1","3.0.0-3ubuntu1.16.04.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.0.0-3ubuntu1.16.04.4","binary_name":"python-pysaml2"},{"binary_version":"3.0.0-3ubuntu1.16.04.4","binary_name":"python3-pysaml2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4245-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-5390"}]}}},{"package":{"name":"python-pysaml2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-pysaml2@4.0.2-0ubuntu3.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2-0ubuntu3.1"}]}],"versions":["3.0.0-3ubuntu2","4.0.2-0ubuntu2","4.0.2-0ubuntu3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.0.2-0ubuntu3.1","binary_name":"python-pysaml2"},{"binary_version":"4.0.2-0ubuntu3.1","binary_name":"python3-pysaml2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4245-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-5390"}]}}}],"schema_version":"1.7.3"}