{"id":"USN-4644-1","summary":"igraph vulnerability","details":"It was discovered that igraph mishandled certain malformed XML. An attacker\ncould use this vulnerability to cause a denial of service (crash).\n","modified":"2026-04-22T10:10:00.995848Z","published":"2020-11-27T13:16:04Z","related":["UBUNTU-CVE-2018-20349"],"upstream":["CVE-2018-20349","UBUNTU-CVE-2018-20349"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4644-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20349"}],"affected":[{"package":{"name":"igraph","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/igraph@0.7.1-2.1+deb9u1build0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.1-2.1+deb9u1build0.16.04.1"}]}],"versions":["0.7.1-2.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libigraph0v5","binary_version":"0.7.1-2.1+deb9u1build0.16.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-20349","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4644-1.json"}},{"package":{"name":"igraph","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/igraph@0.7.1-2.1+deb9u1build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.1-2.1+deb9u1build0.18.04.1"}]}],"versions":["0.7.1-2.1build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libigraph0v5","binary_version":"0.7.1-2.1+deb9u1build0.18.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-20349","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4644-1.json"}}],"schema_version":"1.7.5"}