CVE-2019-8529

Apple macOS SCSITaskUserClient Out-Of-Bounds Write Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4. An application may be able to execute arbitrary code with kernel privileges.

Un problema de corrupción de memoria fue abordado mejorando la comprobación de entrada. Este problema es corregido en iOS versión 12.2, macOS Mojave versión 10.14.4. Una aplicación puede ejecutar código arbitrario con privilegios de kernel.

This vulnerability allows local attackers to escalate privileges on vulnerable installations of Apple macOS. 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 SCSITaskUserClient module. The issue triggers a write past the end of an allocated data structure. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

*Credits: Juwei Lin(@panicaII) of TrendMicro Research

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-18 CVE Reserved
2019-03-26 CVE Published
2023-12-25 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/HT209599	2019-12-30
https://support.apple.com/HT209600	2019-12-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 12.2 Search vendor "Apple" for product "Iphone Os" and version " < 12.2"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.14.4 Search vendor "Apple" for product "Mac Os X" and version " < 10.14.4"		-		Affected