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CVE-1999-1214 [severity LOW] The asynchronous I/O facility in 4

.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1214","sourceIdentifier":"cve@mitre.org","published":"1997-09-15T04:00:00.000","lastModified":"2026-06-16T21:49:57.743","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:P","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-255"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:sgi:irix:*:*:*:*:*:*:*:*","matchCriteriaId":"056B3397-81A9-4128-9F49-ECEBE1743EE8"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*","matchCriteriaId":"B44D379F-F380-42EC-9C9A-A4C8314A4BDF"},{"vulnerable":true,"criteria":"cpe:2.3:o:bsd:bsd:4.4:*:*:*:*:*:*:*","matchCriteriaId":"3C37EB61-50BE-451A-916B-B05BAC79962B"},{"vulnerable":true,"criteria":"cpe:2.3:o:freebsd:freebsd:6.2:stable:*:*:*:*:*:*","matchCriteriaId":"32FCB0B3-8FBE-49FA-B17E-0D5462C9E5B4"},{"vulnerable":true,"criteria":"cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:*","matchCriteriaId":"36419DD6-0DB4-4BB6-A35F-D8FDB89402F1"},{"vulnerable":true,"criteria":"cpe:2.3:o:openbsd:openbsd:2.1:*:*:*:*:*:*:*","matchCriteriaId":"5CB726CF-ADA2-4CDA-9786-1E84AC53740A"}]}]}],"references":[{"url":"http://www.openbsd.com/advisories/signals.txt","source":"cve@mitre.org"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"cve@mitre.org"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"cve@mitre.org"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"cve@mitre.org"},{"url":"http://www.osvdb.org/11062","source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/556","source":"cve@mitre.org"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openbsd.com/advisories/signals.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/11062","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/556","source":"af854a3a-2127-422b-91ae-364da2661108"}]}},