CVE-2023-32439 : A type confusion issue was addressed with improved checks. This issue is fixed i

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Published 2023-06-23 18:15:14

Updated 2025-01-23 16:36:05

Source Apple Inc.

View at NVD, CVE.org

Products affected by CVE-2023-32439

Apple » Safari
Versions before (<) 16.5.1
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
Matching versions
Apple » Iphone Os
Versions from including (>=) 16.0 and before (<) 16.5.1
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Matching versions
Apple » Iphone Os
Versions before (<) 15.7.7
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Matching versions
Apple » Macos
Versions from including (>=) 13.0 and before (<) 13.4.1
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Matching versions
Apple » Ipados
Versions from including (>=) 16.0 and before (<) 16.5.1
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Matching versions
Apple » Ipados
Versions before (<) 15.7.7
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Matching versions
Webkitgtk » Webkitgtk+
Versions before (<) 2.42.3
cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:*
Matching versions

CVE-2023-32439 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Apple Multiple Products WebKit Type Confusion Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely o

Notes:

https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814, https://support.apple.com/en-us/HT213816; https://nvd.nist.gov/vuln/detail/CVE-2023-32439

Added on 2023-06-23 Action due date 2023-07-14

Exploit prediction scoring system (EPSS) score for CVE-2023-32439

EPSS FAQ

0.24%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 62 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-32439

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
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	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2023-32439

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-2023-32439

https://support.apple.com/kb/HT213814

About the security content of iOS 16.5.1 and iPadOS 16.5.1 - Apple Support
Vendor Advisory
http://seclists.org/fulldisclosure/2023/Jul/6

Full Disclosure: APPLE-SA-2023-06-21-4 macOS Ventura 13.4.1

CVEs referencing this url
https://security.gentoo.org/glsa/202401-04

WebKitGTK+: Multiple Vulnerabilities (GLSA 202401-04) — Gentoo security
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2023/06/29/1

oss-security - WebKitGTK and WPE WebKit Security Advisory WSA-2023-0005
Mailing List

CVEs referencing this url
https://support.apple.com/en-us/HT213813

About the security content of macOS Ventura 13.4.1 - Apple Support
Vendor Advisory

CVEs referencing this url
http://seclists.org/fulldisclosure/2023/Jul/3

Full Disclosure: APPLE-SA-2023-06-21-1 Safari 16.5.1
https://www.debian.org/security/2023/dsa-5449

Debian -- Security Information -- DSA-5449-1 webkit2gtk
https://support.apple.com/en-us/HT213811

About the security content of iOS 15.7.7 and iPadOS 15.7.7 - Apple Support
Vendor Advisory

CVEs referencing this url
http://seclists.org/fulldisclosure/2023/Jul/4

Full Disclosure: APPLE-SA-2023-06-21-2 iOS 16.5.1 and iPadOS 16.5.1

CVEs referencing this url
https://support.apple.com/en-us/HT213814

About the security content of iOS 16.5.1 and iPadOS 16.5.1 - Apple Support
Vendor Advisory

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DF2RESDBALYFDF6OEJDUYFSN7XJADFRD/

[SECURITY] Fedora 38 Update: webkitgtk-2.40.3-1.fc38 - package-announce - Fedora Mailing-Lists
http://seclists.org/fulldisclosure/2023/Jul/5

Full Disclosure: APPLE-SA-2023-06-21-3 iOS 15.7.7 and iPadOS 15.7.7

CVEs referencing this url
https://support.apple.com/kb/HT213816

About the security content of Safari 16.5.1 - Apple Support
Vendor Advisory
https://support.apple.com/en-us/HT213816

About the security content of Safari 16.5.1 - Apple Support
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B4AUUAJFZSYUHC3F4ER7T6JICBCYEQVK/

[SECURITY] Fedora 37 Update: webkitgtk-2.40.3-1.fc37 - package-announce - Fedora Mailing-Lists