{"id":"UBUNTU-CVE-2018-18409","details":"A stack-based buffer over-read exists in setbit() at iptree.h of TCPFLOW 1.5.0, due to received incorrect values causing incorrect computation, leading to denial of service during an address_histogram call or a get_histogram call.","modified":"2026-01-30T01:39:41.843769Z","published":"2018-10-17T00:00:00Z","related":["USN-3955-1"],"upstream":["CVE-2018-18409"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18409"},{"type":"REPORT","url":"https://github.com/simsong/tcpflow/issues/195"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3955-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-18409"}],"affected":[{"package":{"name":"tcpflow","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tcpflow@1.4.4+repack1-2ubuntu0.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.4+repack1-2ubuntu0.1~esm1"}]}],"versions":["1.3.0+dfsg-2","1.4.3+repack1-1","1.4.4+repack1-1","1.4.4+repack1-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"tcpflow","binary_version":"1.4.4+repack1-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18409.json"}},{"package":{"name":"tcpflow","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tcpflow@1.4.5+repack1-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.5+repack1-1ubuntu0.1"}]}],"versions":["1.4.4+repack1-3","1.4.5+repack1-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"tcpflow","binary_version":"1.4.5+repack1-1ubuntu0.1"},{"binary_name":"tcpflow-nox","binary_version":"1.4.5+repack1-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18409.json"}},{"package":{"name":"tcpflow","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tcpflow@1.4.5+repack1-4ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.5+repack1-4ubuntu0.18.04.1"}]}],"versions":["1.4.5+repack1-4","1.4.5+repack1-4build1","1.4.5+repack1-4build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"tcpflow","binary_version":"1.4.5+repack1-4ubuntu0.18.04.1"},{"binary_name":"tcpflow-nox","binary_version":"1.4.5+repack1-4ubuntu0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18409.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}