{"id":"DEBIAN-CVE-2019-16411","details":"An issue was discovered in Suricata 4.1.4. By sending multiple IPv4 packets that have invalid IPv4Options, the function IPV4OptValidateTimestamp in decode-ipv4.c tries to access a memory region that is not allocated. There is a check for o-\u003elen \u003c 5 (corresponding to 2 bytes of header and 3 bytes of data). Then, \"flag = *(o-\u003edata + 3)\" places one beyond the 3 bytes, because the code should have been \"flag = *(o-\u003edata + 1)\" instead.","modified":"2026-09-09T07:01:57.359659802Z","published":"2019-09-24T20:15:11.967Z","upstream":["CVE-2019-16411"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2019-16411"}],"affected":[{"package":{"name":"suricata","ecosystem":"Debian:13","purl":"pkg:deb/debian/suricata?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.1.5-1"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16411.json"}},{"package":{"name":"suricata","ecosystem":"Debian:14","purl":"pkg:deb/debian/suricata?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.1.5-1"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16411.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}