{"id":"CVE-2006-0381","aliases":["EUVD-2006-0388","GHSA-4x4x-qj57-37wg"],"status":"published","title":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and...","description":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.06599,"percentile":0.9389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2006-01-25T22:00:00Z","modified":"2026-06-16T22:20:29Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://www.securityfocus.com/bid/16375","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://securitytracker.com/id?1015542","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/18609","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/24337","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:07.pf.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Patch"]},{"url":"http://www.osvdb.org/22732","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/sys/net/pf_norm.c.diff?r1=1.103\u0026r2=1.104","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-004.txt.asc","tags":["vendor-advisory","x_refsource_NETBSD","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-0381"},{"url":"https://github.com/advisories/GHSA-4x4x-qj57-37wg"}],"sources":{"cve":[{"id":"CVE-2006-0381","description":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.","status":"published","published":"2006-01-25T22:00:00Z","modified":"2024-08-07T16:34:14.788Z","updated_at":"2026-11-02T14:33:52.947472Z"}],"euvd":[{"id":"EUVD-2006-0388","description":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.","status":"published","published":"2006-01-25T22:00:00Z","modified":"2024-08-07T16:34:14Z","updated_at":"2026-11-03T01:16:09.484912Z"}],"ghsa":[{"id":"GHSA-4x4x-qj57-37wg","title":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and...","description":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.","status":"published","published":"2022-05-03T03:15:32Z","modified":"2023-02-01T05:01:15Z","updated_at":"2026-11-02T14:49:41.640503Z"}],"nvd":[{"id":"CVE-2006-0381","description":"A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service (crash) via crafted packets that cause a packet fragment to be inserted twice.","status":"published","published":"2006-01-25T22:03:00Z","modified":"2026-06-16T22:20:29.967Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:00.269596Z"}]}}