// For flags

CVE-2019-8662

iMessage - Decoding NSSharedKeyDictionary can read ObjC Object at Attacker Controlled Address

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This issue was addressed with improved checks. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. An attacker may be able to trigger a use-after-free in an application deserializing an untrusted NSDictionary.

Este problema fue abordado con comprobaciones mejoradas. 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 puede desencadenar un uso de la memoria previamente liberada en una aplicación que deserializa un NSDictionary no confiable.

NSKeyedUnarchiver suffers from a use-after-free vulnerability with ObjC objects when unarchiving OITSUIntDictionary instances even if secureCoding is required.

*Credits: N/A
CVSS Scores
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
  • 2024-08-14 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
  • CWE-502: Deserialization of Untrusted Data
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"
 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