{"id":"CVE-2006-4178","aliases":["EUVD-2006-4168","GHSA-g227-wrgp-xcx3"],"status":"published","title":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions...","description":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions down to 5.2, allows local users to cause a denial of service (crash) via unspecified arguments that use negative signed integers to cause the bzero function to be called with a large length parameter, a different vulnerability than CVE-2006-4172.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0079,"percentile":0.56531,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2006-09-26T01:43:00Z","modified":"2026-06-16T22:28:33Z","exploits":[{"source":"exploitdb","id":"EDB-28648","title":"FreeBSD 5.x - 'I386_Set_LDT()' Multiple Local Denial of Service Vulnerabilities","type":"dos","platform":"freebsd","date":"2006-09-23","verified":true,"url":"https://www.exploit-db.com/exploits/28648"}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://securitytracker.com/id?1016927","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/22064","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.securityfocus.com/bid/20158","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.idefense.com/intelligence/vulnerabilities/display.php?id=415","tags":["third-party-advisory","x_refsource_IDEFENSE","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/446946/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4178"},{"url":"https://github.com/advisories/GHSA-g227-wrgp-xcx3"}],"sources":{"cve":[{"id":"CVE-2006-4178","description":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions down to 5.2, allows local users to cause a denial of service (crash) via unspecified arguments that use negative signed integers to cause the bzero function to be called with a large length parameter, a different vulnerability than CVE-2006-4172.","status":"published","published":"2006-09-26T01:43:00Z","modified":"2024-08-07T18:57:46.316Z","updated_at":"2026-11-02T14:33:51.085765Z"}],"euvd":[{"id":"EUVD-2006-4168","description":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions down to 5.2, allows local users to cause a denial of service (crash) via unspecified arguments that use negative signed integers to cause the bzero function to be called with a large length parameter, a different vulnerability than CVE-2006-4172.","status":"published","published":"2006-09-26T01:43:00Z","modified":"2024-08-07T18:57:46Z","updated_at":"2026-11-03T01:15:53.114486Z"}],"ghsa":[{"id":"GHSA-g227-wrgp-xcx3","title":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions...","description":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions down to 5.2, allows local users to cause a denial of service (crash) via unspecified arguments that use negative signed integers to cause the bzero function to be called with a large length parameter, a different vulnerability than CVE-2006-4172.","status":"published","published":"2022-05-01T07:16:10Z","modified":"2023-01-31T05:01:48Z","updated_at":"2026-11-02T14:48:08.305035Z"}],"nvd":[{"id":"CVE-2006-4178","description":"Integer signedness error in the i386_set_ldt call in FreeBSD 5.5, and possibly earlier versions down to 5.2, allows local users to cause a denial of service (crash) via unspecified arguments that use negative signed integers to cause the bzero function to be called with a large length parameter, a different vulnerability than CVE-2006-4172.","status":"published","published":"2006-09-26T02:07:00Z","modified":"2026-06-16T22:28:33.413Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:06.675668Z"}]}}