{"schemaVersion":3,"id":"CVE-2001-1047","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Race condition in OpenBSD VFS allows local users to cause a denial of service (kernel panic) by (1) creating a pipe in one thread and causing another thread to set one of the file descriptors to NULL via a close, or (2) calling dup2 on a file descriptor in one process, then setting the descriptor to NULL via a close in another process that is created via rfork.","dates":{"published":"2002-02-02T05:00:00.000Z","modified":"2024-08-08T04:44:07.058Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":1.2,"severity":"low","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:L/AC:H/Au:N/C:N/I:N/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":1.2,"severity":"low","vector":"AV:L/AC:H/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00269,"percentile":0.17908,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00269},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00269,"percentile":0.17908}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00269,"percentile":0.17908}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"openbsd","product":"openbsd","name":"openbsd","label":"openbsd","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"2.6","noFixRecorded":false,"fixedIn":null},{"text":"2.7","noFixRecorded":false,"fixedIn":null},{"text":"2.8","noFixRecorded":false,"fixedIn":null},{"text":"2.9","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.6 | 2.7 | 2.8 | 2.9","eol":{"isEol":true,"eolDate":"2000-12-01T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"2.6","label":"2.6","eolFrom":"2000-12-01T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"openbsd","label":"OpenBSD","category":"os"}},"hubHref":"/vendor/openbsd/openbsd"}],"affectedCount":1,"eol":{"hasEol":true,"count":1},"references":[{"url":"http://seclists.org/bugtraq/2001/Jun/0020.html","label":"seclists.org/bugtraq/2001/Jun/0020.html","hostname":"seclists.org","tags":["Mailing List","X Refsource BUGTRAQ"]},{"url":"http://www.securityfocus.com/bid/2817","label":"www.securityfocus.com/bid/2817","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6660","label":"exchange.xforce.ibmcloud.com/vulnerabilities/6660","hostname":"exchange.xforce.ibmcloud.com","tags":["VDB Entry","X Refsource XF"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6661","label":"exchange.xforce.ibmcloud.com/vulnerabilities/6661","hostname":"exchange.xforce.ibmcloud.com","tags":["VDB Entry","X Refsource XF"]},{"url":"http://www.securityfocus.com/bid/2818","label":"www.securityfocus.com/bid/2818","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2002-02-02T05:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-08T04:44:07.058Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":5,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T14:02:01.355Z","stale":false,"partial":false}}