Published: 27/12/2017 Updated: 22/03/2019

CVSS v2 Base Score: 5.6 | Impact Score: 7.8 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.6 | Impact Score: 5.2 | Exploitability Score: 1.3

VMScore: 565

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:C

An issue exists in certain Apple products. iOS prior to 11.2 is affected. macOS prior to 10.13.2 is affected. tvOS prior to 11.2 is affected. The issue involves the "Kernel" component. It allows local users to bypass intended memory-read restrictions or cause a denial of service (system crash).

Vulnerable Product	Search on Vulmon	Subscribe to Product
apple mac os x
apple tvos
apple iphone os

/* The syscall process_policy(scope=PROC_POLICY_SCOPE_PROCESS, action=PROC_POLICY_ACTION_GET, policy=PROC_POLICY_RESOURCE_USAGE, policy_subtype=PROC_POLICY_RUSAGE_CPU, attrp=<userbuf>, target_pid=0, target_threadid=<ignored>) causes 4 bytes of uninitialized kernel stack memory to be written to userspace The call graph looks as follows ...

macOS suffers from a process_policy stack leak through an uninitialized field ...

CWE-20 https://support.apple.com/HT208334 https://support.apple.com/HT208331 https://support.apple.com/HT208327 https://www.exploit-db.com/exploits/43521/http://www.securityfocus.com/bid/103134 https://nvd.nist.gov https://www.exploit-db.com/exploits/43521/

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CVE-2017-7154

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