// For flags

CVE-2020-9996

Apple macOS libnetworkextension ne_filter_protocol_remove_input_handler Use-After-Free Remote Code Execution Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A malicious application may be able to elevate privileges.

Se abordó un problema de uso de la memoria previamente liberada con un manejo de la memoria mejorada. Este problema se corrigió en macOS Big Sur versión 11.0.1, iOS versión 14.0 y iPadOS versión 14.0. Una aplicación maliciosa puede ser capaz de escalar privilegios

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. 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 network extensions in PDFs. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: Zhiwei Yuan of Trend Micro iCore Team, Junzhi Lu and Mickey Jin of Trend Micro Mobile Security Research Team
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
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-03-02 CVE Reserved
  • 2020-12-03 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-25 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
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"
 Ipados
Search vendor "Apple" for product "Ipados"
 < 14.0
Search vendor "Apple" for product "Ipados" and version " < 14.0"
-
Affected
Apple
Search vendor "Apple"
 Iphone Os
Search vendor "Apple" for product "Iphone Os"
 < 14.0
Search vendor "Apple" for product "Iphone Os" and version " < 14.0"
-
Affected
Apple
Search vendor "Apple"
 Mac Os X
Search vendor "Apple" for product "Mac Os X"
 < 11.0.1
Search vendor "Apple" for product "Mac Os X" and version " < 11.0.1"
-
Affected