{"id":"CVE-2002-0820","aliases":["EUVD-2002-0812","GHSA-xpcm-qv2j-fxfr"],"status":"published","title":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already...","description":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.","severity":{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00411,"percentile":0.35669,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-08-02T04:00:00Z","modified":"2026-06-16T21:58:11Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://groups.google.com/groups?hl=en\u0026lr=\u0026ie=UTF-8\u0026oe=UTF-8\u0026frame=right\u0026th=d429cd2ef1d3a2b7\u0026seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16","tags":["x_refsource_MISC","x_transferred"]},{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html","tags":["mailing-list","x_refsource_VULNWATCH","x_transferred","Vendor Advisory"]},{"url":"http://marc.info/?l=bugtraq\u0026m=102979180524452\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0820"},{"url":"https://github.com/advisories/GHSA-xpcm-qv2j-fxfr"}],"sources":{"cve":[{"id":"CVE-2002-0820","description":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.","status":"published","published":"2002-08-02T04:00:00Z","modified":"2024-08-08T03:03:49.368Z","updated_at":"2026-11-02T14:33:55.642267Z"}],"euvd":[{"id":"EUVD-2002-0812","description":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.","status":"published","published":"2002-08-02T04:00:00Z","modified":"2024-08-08T03:03:49Z","updated_at":"2026-11-03T01:14:59.095718Z"}],"ghsa":[{"id":"GHSA-xpcm-qv2j-fxfr","title":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already...","description":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.","status":"published","published":"2022-05-03T03:07:59Z","modified":"2023-02-01T05:01:01Z","updated_at":"2026-11-02T14:49:39.185404Z"}],"nvd":[{"id":"CVE-2002-0820","description":"FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-06-16T21:58:11.9Z","cvss":[{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:42.827505Z"}]}}