{"id":"UBUNTU-CVE-2019-25043","details":"ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a \"string index out of range\" error and worker-process crash for a \"Cookie: =abc\" header.","modified":"2026-01-20T17:08:59.950968Z","published":"2021-05-06T17:15:00Z","upstream":["CVE-2019-25043"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25043"},{"type":"REPORT","url":"https://github.com/SpiderLabs/ModSecurity/issues/2566"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-25043"}],"affected":[{"package":{"name":"modsecurity","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/modsecurity@3.0.4-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3-1","3.0.4-1","3.0.4-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.4-1build1","binary_name":"libmodsecurity-dev"},{"binary_version":"3.0.4-1build1","binary_name":"libmodsecurity3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25043.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/modsecurity@3.0.6-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-2","3.0.6-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.6-1","binary_name":"libmodsecurity-dev"},{"binary_version":"3.0.6-1","binary_name":"libmodsecurity3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25043.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/modsecurity@3.0.12-1.1build2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.10-1","3.0.11-1","3.0.12-1","3.0.12-1.1build1","3.0.12-1.1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.12-1.1build2","binary_name":"libmodsecurity-dev"},{"binary_version":"3.0.12-1.1build2","binary_name":"libmodsecurity3t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25043.json"}},{"package":{"name":"modsecurity","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/modsecurity@3.0.14-1build1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.13-1","3.0.14-1","3.0.14-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.14-1build1","binary_name":"libmodsecurity-dev"},{"binary_version":"3.0.14-1build1","binary_name":"libmodsecurity3t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25043.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}