{"id":"UBUNTU-CVE-2018-19519","details":"In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.","modified":"2026-02-04T03:50:47.069286Z","published":"2018-11-25T20:29:00Z","related":["USN-4252-1","USN-4252-2"],"upstream":["CVE-2018-19519"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-19519"},{"type":"REPORT","url":"https://github.com/zyingp/temp/blob/master/tcpdump.md"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4252-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4252-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-19519"}],"affected":[{"package":{"name":"tcpdump","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tcpdump@4.9.3-0ubuntu0.14.04.1+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.3-0ubuntu0.14.04.1+esm1"}]}],"versions":["4.4.0-1ubuntu1","4.5.1-2ubuntu1","4.5.1-2ubuntu1.1","4.5.1-2ubuntu1.2","4.9.0-1ubuntu1~ubuntu14.04.1","4.9.2-0ubuntu0.14.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"4.9.3-0ubuntu0.14.04.1+esm1","binary_name":"tcpdump"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19519.json"}},{"package":{"name":"tcpdump","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tcpdump@4.9.3-0ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.3-0ubuntu0.16.04.1"}]}],"versions":["4.7.4-1ubuntu1","4.9.0-1ubuntu1~ubuntu16.04.1","4.9.2-0ubuntu0.16.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.9.3-0ubuntu0.16.04.1","binary_name":"tcpdump"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19519.json"}},{"package":{"name":"tcpdump","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tcpdump@4.9.3-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.3-0ubuntu0.18.04.1"}]}],"versions":["4.9.2-1","4.9.2-2","4.9.2-2build1","4.9.2-2ubuntu1","4.9.2-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.9.3-0ubuntu0.18.04.1","binary_name":"tcpdump"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19519.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:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}