{"id":"UBUNTU-CVE-2019-20917","details":"An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. The mysql module contains a NULL pointer dereference when built against mariadb-connector-c 3.0.5 or newer. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","modified":"2026-04-22T12:17:29.662918Z","published":"2020-09-11T05:15:00Z","related":["USN-7405-1"],"upstream":["CVE-2019-20917"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20917"},{"type":"REPORT","url":"https://docs.inspircd.org/security/2019-02/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-20917"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7405-1"}],"affected":[{"package":{"name":"inspircd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/inspircd@2.0.20-5ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.20-5ubuntu0.1~esm1"}]}],"versions":["2.0.20-3","2.0.20-4","2.0.20-5","2.0.20-5build1","2.0.20-5build2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"inspircd","binary_version":"2.0.20-5ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20917.json"}},{"package":{"name":"inspircd","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/inspircd@2.0.24-1ubuntu1+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.24-1ubuntu1+esm1"}]}],"versions":["2.0.24-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"inspircd","binary_version":"2.0.24-1ubuntu1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20917.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}