// For flags

CVE-2019-6208

macOS XNU - Copy-on-Write Behaviour Bypass via Partial-Page Truncation of File

Severity Score

5.5
*CVSS v3

Exploit Likelihood

6.5%
*EPSS

Affected Versions

3
*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2. A malicious application may cause unexpected changes in memory shared between processes.

Se abordó un problema de inicialización de memoria con la mejora de la gestión de memoria. Este problema se ha resuelto en iOS 12.1.3, macOS Mojave 10.14.3 y tvOS 12.1.2. Una aplicación maliciosa podría provocar daños inesperados en la memoria compartida entre procesos.

macOS Mojave 10.14.3, Security Update 2019-001 High Sierra, Security Update 2019-001 Sierra are now available and addresses buffer overflow, code execution, and denial of service vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-01-11 CVE Reserved
  • 2019-01-23 CVE Published
  • 2019-01-31 First Exploit
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-665: Improper Initialization
CAPEC
Affected Vendors, Products, and Versions (3)