Vulnerability Details : CVE-2019-8506

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Published 2019-12-18 18:15:23

Updated 2021-05-18 12:59:43

Source Apple Inc.

View at NVD, CVE.org

CVE-2019-8506 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Apple Multiple Products Type Confusion Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

A type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.

Added on 2022-05-04 Action due date 2022-05-25

Exploit prediction scoring system (EPSS) score for CVE-2019-8506

Probability of exploitation activity in the next 30 days: 7.47%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 93 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-8506

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
9.3	HIGH	AV:N/AC:M/Au:N/C:C/I:C/A:C	8.6	10.0	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-8506

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-8506

https://support.apple.com/HT209603

About the security content of Safari 12.1 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/HT209599

About the security content of iOS 12.2 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/HT209604

About the security content of iTunes 12.9.4 for Windows - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/HT209601

About the security content of tvOS 12.2 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/HT209605

About the security content of iCloud for Windows 7.11 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/HT209602

About the security content of watchOS 5.2 - Apple Support
Vendor Advisory

CVEs referencing this url

Products affected by CVE-2019-8506

Redhat » Enterprise Linux Desktop » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Workstation » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Matching versions
Apple » Safari
Versions before (<) 12.1
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
Matching versions
Apple » Itunes » For Windows
Versions before (<) 12.9.4
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
Matching versions
Apple » Iphone Os
Versions before (<) 12.2
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Matching versions
Apple » Watchos
Versions before (<) 5.2
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Matching versions
Apple » Icloud » For Windows
Versions before (<) 7.11
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
Matching versions
Apple » Tvos
Versions before (<) 12.2
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
Matching versions