{"id":"UBUNTU-CVE-2023-22483","details":"cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.","modified":"2026-04-22T14:02:02.144191Z","published":"2023-01-23T23:15:00Z","related":["USN-7319-1"],"upstream":["CVE-2023-22483"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-22483"},{"type":"REPORT","url":"https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-22483"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7319-1"}],"affected":[{"package":{"name":"cmark-gfm","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/cmark-gfm@0.29.0.gfm.0-4ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.28.3.gfm.20-3","0.29.0.gfm.0-3","0.29.0.gfm.0-4","0.29.0.gfm.0-4ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"cmark-gfm","binary_version":"0.29.0.gfm.0-4ubuntu0.1~esm1"},{"binary_name":"libcmark-gfm-extensions0","binary_version":"0.29.0.gfm.0-4ubuntu0.1~esm1"},{"binary_name":"libcmark-gfm0","binary_version":"0.29.0.gfm.0-4ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22483.json"}},{"package":{"name":"cmark-gfm","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/cmark-gfm@0.29.0.gfm.3-3ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.29.0.gfm.3-3ubuntu0.1~esm1"}]}],"versions":["0.29.0.gfm.0-6","0.29.0.gfm.2-1","0.29.0.gfm.2-1+really.0.29.0.gfm.0ubuntu1","0.29.0.gfm.2-2","0.29.0.gfm.3-3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"cmark-gfm","binary_version":"0.29.0.gfm.3-3ubuntu0.1~esm1"},{"binary_name":"libcmark-gfm-extensions0.29.0.gfm.3","binary_version":"0.29.0.gfm.3-3ubuntu0.1~esm1"},{"binary_name":"libcmark-gfm0.29.0.gfm.3","binary_version":"0.29.0.gfm.3-3ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22483.json"}},{"package":{"name":"cmark-gfm","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/cmark-gfm@0.29.0.gfm.6-6ubuntu0.24.04.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.29.0.gfm.6-6ubuntu0.24.04.1~esm1"}]}],"versions":["0.29.0.gfm.6-6","0.29.0.gfm.6-6build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"cmark-gfm","binary_version":"0.29.0.gfm.6-6ubuntu0.24.04.1~esm1"},{"binary_name":"libcmark-gfm-extensions0.29.0.gfm.6","binary_version":"0.29.0.gfm.6-6ubuntu0.24.04.1~esm1"},{"binary_name":"libcmark-gfm0.29.0.gfm.6","binary_version":"0.29.0.gfm.6-6ubuntu0.24.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22483.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}