{"id":"UBUNTU-CVE-2019-6991","details":"A classic Stack-based buffer overflow exists in the zmLoadUser() function in zm_user.cpp of the zmu binary in ZoneMinder through 1.32.3, allowing an unauthenticated attacker to execute code via a long username.","modified":"2026-01-30T02:37:36.070525Z","published":"2019-01-28T20:29:00Z","related":["USN-5889-1"],"upstream":["CVE-2019-6991"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-6991"},{"type":"REPORT","url":"https://github.com/ZoneMinder/zoneminder/issues/2478"},{"type":"REPORT","url":"https://github.com/ZoneMinder/zoneminder/pull/2482"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5889-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-6991"}],"affected":[{"package":{"name":"zoneminder","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/zoneminder@1.29.0+dfsg-1ubuntu2+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.0+dfsg-1ubuntu2+esm1"}]}],"versions":["1.28.1-8","1.29.0+dfsg-1","1.29.0+dfsg-1ubuntu1","1.29.0+dfsg-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.29.0+dfsg-1ubuntu2+esm1","binary_name":"zoneminder"}],"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-2019-6991.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}