{"id":"CVE-2013-3951","aliases":["EUVD-2013-3883","GHSA-77m7-6q2g-65ff"],"status":"published","title":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly...","description":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.","severity":{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00455,"percentile":0.39738,"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":"2026-06-16T23:56:04Z","products":[{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"http://www.securitytracker.com/id/1033703","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.syscan.org/index.php/sg/program/day/2","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/HT205212","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://support.apple.com/HT205267","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/HT205213","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-3951"},{"url":"https://github.com/advisories/GHSA-77m7-6q2g-65ff"}],"sources":{"cve":[{"id":"CVE-2013-3951","description":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.","status":"published","published":"2013-06-05T10:00:00Z","modified":"2024-08-06T16:30:49.891Z","updated_at":"2026-11-02T14:34:56.872243Z"}],"euvd":[{"id":"EUVD-2013-3883","description":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.","status":"published","published":"2013-06-05T10:00:00Z","modified":"2024-08-06T16:30:49Z","updated_at":"2026-11-03T01:56:33.663204Z"}],"ghsa":[{"id":"GHSA-77m7-6q2g-65ff","title":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly...","description":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.","status":"published","published":"2022-05-17T03:23:25Z","modified":"2023-01-27T05:07:42Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:10.319958Z"}],"nvd":[{"id":"CVE-2013-3951","description":"sys/openbsd/stack_protector.c in libc in Apple iOS 6.1.3 and Mac OS X 10.8.x does not properly parse the Apple strings employed in the user-space stack-cookie implementation, which allows local users to bypass cookie randomization by executing a program with a call-path beginning with the stack-guard= substring, as demonstrated by an iOS untethering attack or an attack against a setuid Mac OS X program.","status":"published","published":"2013-06-05T14:39:55.9Z","modified":"2026-06-16T23:56:04.663Z","cvss":[{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:29.210317Z"}]}}