// For flags

CVE-2016-4652

Apple OS X WindowServer _XFlushRegion Out-Of-Bounds Read Privilege Escalation Vulnerability

Severity Score

6.3
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

CoreGraphics in Apple OS X before 10.11.6 allows local users to obtain sensitive information from kernel memory and consequently gain privileges, or cause a denial of service (out-of-bounds read), via unspecified vectors.

CoreGraphics en Apple OS X en versiones anteriores a 10.11.6 permite a usuarios locales obtener información sensible de la memoria del kernel y por consiguiente obtener privilegios o provocar una denegación de memoria (lectura fuera de rango), a través de vectores no especificados.

This vulnerability allows local attackers to disclose sensitive information on vulnerable installations of Apple OS X. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the CoreGraphics module. The issue lies in the failure to properly validate user-supplied data which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges in the context of WindowServer.

*Credits: aca055c25829115b84ad07e72a4eff16
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-05-11 CVE Reserved
  • 2016-07-20 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-21 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
  • CWE-264: Permissions, Privileges, and Access Controls
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"
 <= 10.11.5
Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.5"
-
Affected