CVE-2019-8660

iMessage - Memory Corruption when Decoding NSKnownKeysDictionary1

Severity Score

9.8

*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 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.

Un problema de corrupción de memoria fue abordado mejorando la comprobación de entrada. Este problema es corregido en iOS versión 12.4, macOS Mojave versión 10.14.6, tvOS versión 12.4, watchOS versión 5.3. Un atacante remoto puede ser capaz de causar una finalización inesperada de la aplicación o una ejecución de código arbitrario.

macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra are now available and address bypass, code execution, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-02-18 CVE Reserved
2019-07-22 CVE Published
2019-07-30 First Exploit
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://packetstorm.news/files/id/153827	2019-07-30
https://www.exploit-db.com/exploits/47193	2019-07-30

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/HT210346	2020-08-24
https://support.apple.com/HT210348	2020-08-24
https://support.apple.com/HT210351	2020-08-24
https://support.apple.com/HT210353	2020-08-24

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"				< 12.4 Search vendor "Apple" for product "Iphone Os" and version " < 12.4"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				< 10.14.6 Search vendor "Apple" for product "Mac Os X" and version " < 10.14.6"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 12.4 Search vendor "Apple" for product "Tvos" and version " < 12.4"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 5.3 Search vendor "Apple" for product "Watchos" and version " < 5.3"		-		Affected