libpthread in Apple iOS before 8.4.1 and OS X before 10.10.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via an app that uses a crafted syscall to interfere with locking.
Base Score: 9.3
Impact Score: 10
Exploitability Score: 8.6
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to 8.4 (inclusive)
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to 10.10.4 (inclusive)
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