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zdiJuwei Lin of Trend MicroZDI-16-205
HistoryMar 22, 2016 - 12:00 a.m.

Apple OS X IOGraphicsFamily Untrusted Pointer Dereference Privilege Escalation Vulnerability

2016-03-2200:00:00
Juwei Lin of Trend Micro
www.zerodayinitiative.com
9

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.003 Low

EPSS

Percentile

68.6%

This vulnerability allows local attackers to elevate privileges on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The specific flaw exists within the IOGraphicsFamily interface. The issue lies failure to validate user-supplied function addresses prior to using them. An attacker can leverage this to escalate their privileges and execute code under the context of the kernel.

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.003 Low

EPSS

Percentile

68.6%

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