{"id":"UBUNTU-CVE-2019-10053","details":"An issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the function SSHParseBanner is composed only of a \\n character, then the program runs into a heap-based buffer over-read. This occurs because the erroneous search for \\r results in an integer underflow.","modified":"2025-10-24T04:47:35Z","published":"2019-05-13T21:29:00Z","upstream":["CVE-2019-10053"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-10053"},{"type":"REPORT","url":"https://lists.openinfosecfoundation.org/pipermail/oisf-announce/"},{"type":"REPORT","url":"https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-10053"}],"affected":[{"package":{"name":"suricata","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/suricata@3.0-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.8-1build1","2.0.9-1","2.0.10-1","2.0.10-2","2.0.11-1","3.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0-1","binary_name":"suricata"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-10053.json"}},{"package":{"name":"suricata","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/suricata@3.2-2ubuntu3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2-2ubuntu3","binary_name":"libhtp-0.5.23-1"},{"binary_version":"3.2-2ubuntu3","binary_name":"suricata"},{"binary_version":"3.2-2ubuntu3","binary_name":"suricata-hyperscan"},{"binary_version":"3.2-2ubuntu3","binary_name":"suricata-oinkmaster"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-10053.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"}]}