// For flags

CVE-2016-1749

Apple OS X IOUSBInterfaceUserClient Out-Of-Bounds Indexing Privilege Escalation Vulnerability

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

IOUSBFamily in Apple OS X before 10.11.4 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

IOUSBFamily en Apple OS X en versiones anteriores a 10.11.4 permite a atacantes ejecutar código arbitrario en un contexto privilegiado o causar una denegación de servicio (corrupción de memoria) a través de una app manipulada.

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Apple OS X. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of the IOUSBInterfaceUserClient interface. The issue lies in the failure to ensure that a user-supplied index is within the bounds of the allocated buffer. An attacker can leverage this to escalate their privileges and execute code under the context of the kernel.

Mac OS X kernel suffers from a code execution vulnerability due to a lack of bounds checking in AppleUSBPipe::Abort.

*Credits: Juwei Lin of Trend Micro
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-01-13 CVE Reserved
  • 2016-03-22 CVE Published
  • 2024-04-23 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apple
Search vendor "Apple"
 Mac Os X
Search vendor "Apple" for product "Mac Os X"
 <= 10.11.3
Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.3"
-
Affected