{"id":"UBUNTU-CVE-2018-18407","details":"A heap-based buffer over-read was discovered in the tcpreplay-edit binary of Tcpreplay 4.3.0 beta1, during the incremental checksum operation. The issue gets triggered in the function csum_replace4() in incremental_checksum.h, causing a denial of service.","modified":"2026-01-30T01:47:37.770048Z","published":"2018-10-17T04:29:00Z","related":["USN-5205-1"],"upstream":["CVE-2018-18407"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18407"},{"type":"REPORT","url":"https://github.com/appneta/tcpreplay/issues/488"},{"type":"REPORT","url":"https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#user-content-heap-overflow-in-csum_replace4"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5205-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-18407"}],"affected":[{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@3.4.4-2+deb8u1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.4-2+deb8u1ubuntu0.1~esm1"}]}],"versions":["3.4.4-2","3.4.4-2+deb8u1build0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpreplay","binary_version":"3.4.4-2+deb8u1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18407.json"}},{"package":{"name":"tcpreplay","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tcpreplay@4.2.6-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.6-1ubuntu0.1~esm1"}]}],"versions":["4.2.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"tcpreplay","binary_version":"4.2.6-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18407.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"}]}