CVE-2020-3829

macOS / iOS launchd XPC Message Parsing Memory Corruption

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to gain elevated privileges.

Se abordó una lectura fuera de límites con una verificación de límites mejorada. Este problema es corregido en iOS versión 13.3.1 y iPadOS versión 13.3.1, macOS Catalina versión 10.15.3, tvOS versión 13.3.1, watchOS versión 6.1.2. Una aplicación puede ser capaz de alcanzar privilegios elevados.

launchd on macOS and iOS suffer from a memory corruption issue due to a lack of bounds checking when parsing XPC messages.

*Credits: N/A

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

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-18 CVE Reserved
2020-01-29 CVE Published
2024-01-01 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/HT210918	2020-03-02
https://support.apple.com/HT210919	2020-03-02
https://support.apple.com/HT210920	2020-03-02
https://support.apple.com/HT210921	2020-03-02

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"				< 13.3.1 Search vendor "Apple" for product "Ipados" and version " < 13.3.1"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 13.3.1 Search vendor "Apple" for product "Iphone Os" and version " < 13.3.1"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.15.3 Search vendor "Apple" for product "Mac Os X" and version " < 10.15.3"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 13.3.1 Search vendor "Apple" for product "Tvos" and version " < 13.3.1"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 6.1.2 Search vendor "Apple" for product "Watchos" and version " < 6.1.2"		-		Affected