{"id":"CVE-2013-3954","aliases":["EUVD-2013-3886","GHSA-h4gh-vjrf-v43x"],"status":"published","title":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate...","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","severity":{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00416,"percentile":0.36186,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2013-06-05T10:00:00Z","modified":"2026-06-16T23:56:05Z","products":[{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"}],"references":[{"url":"http://www.syscan.org/index.php/sg/program/day/2","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securitytracker.com/id/1029054","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred"]},{"url":"http://secunia.com/advisories/54886","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://support.apple.com/kb/HT5934","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-3954"},{"url":"https://github.com/advisories/GHSA-h4gh-vjrf-v43x"}],"sources":{"cve":[{"id":"CVE-2013-3954","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","status":"published","published":"2013-06-05T10:00:00Z","modified":"2024-08-06T16:30:48.213Z","updated_at":"2026-11-02T14:34:56.872243Z"}],"euvd":[{"id":"EUVD-2013-3886","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","status":"published","published":"2013-06-05T10:00:00Z","modified":"2024-08-06T16:30:48Z","updated_at":"2026-11-03T01:56:33.663204Z"}],"ghsa":[{"id":"GHSA-h4gh-vjrf-v43x","title":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate...","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","status":"published","published":"2022-05-17T04:59:03Z","modified":"2023-01-28T05:02:57Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:52.645209Z"}],"nvd":[{"id":"CVE-2013-3954","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","status":"published","published":"2013-06-05T14:39:57.853Z","modified":"2026-06-16T23:56:05.06Z","cvss":[{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:29.210317Z"}]}}