{"id":"USN-5198-1","summary":"htmldoc vulnerability","details":"It was discovered that HTMLDOC improperly handled malformed URIs from an input\nhtml file.  An attacker could use this to cause a denial of service.\n","modified":"2026-04-27T16:01:40.751044Z","published":"2021-12-16T19:32:27Z","related":["UBUNTU-CVE-2021-23180"],"upstream":["CVE-2021-23180","UBUNTU-CVE-2021-23180"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5198-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23180"}],"affected":[{"package":{"name":"htmldoc","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/htmldoc@1.9.7-1ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.7-1ubuntu0.2"}]}],"versions":["1.9.3-1","1.9.7-1","1.9.7-1build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"htmldoc","binary_version":"1.9.7-1ubuntu0.2"},{"binary_name":"htmldoc-common","binary_version":"1.9.7-1ubuntu0.2"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-23180"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5198-1.json"}}],"schema_version":"1.7.5"}