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Actively exploited · Published Jun 23, 2023 · Assigned by apple

CVE-2023-32439

High 8.8 Exploited

In plain English

A high-severity type confusion in iOS and iPadOS from Apple. Attackers are actively exploiting it in the wild (listed by CISA on June 23, 2023). The chance it is exploited in the next 30 days is estimated at 24.0% (higher than 98% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)24.0%top 2.2% of all CVEs
Exploited in the wildYesCISA KEV since Jun 23, 2023
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Jul 14, 2023.

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8webkit2gtk32.38.5-1.el8_8.5.almaALSA-2023:4202
AlmaLinux:9webkit2gtk32.38.5-1.el9_2.3ALSA-2023:4201
AlmaLinux:8webkit2gtk3-devel2.38.5-1.el8_8.5.almaALSA-2023:4202
AlmaLinux:9webkit2gtk3-devel2.38.5-1.el9_2.3ALSA-2023:4201
AlmaLinux:8webkit2gtk3-jsc2.38.5-1.el8_8.5.almaALSA-2023:4202
AlmaLinux:9webkit2gtk3-jsc2.38.5-1.el9_2.3ALSA-2023:4201
AlmaLinux:8webkit2gtk3-jsc-devel2.38.5-1.el8_8.5.almaALSA-2023:4202
AlmaLinux:9webkit2gtk3-jsc-devel2.38.5-1.el9_2.3ALSA-2023:4201
Debian:12webkit2gtk2.40.3-2~deb12u1DEBIAN-CVE-2023-32439
Debian:12webkit2gtk2.40.3-2~deb12u1DSA-5449-1
Debian:13webkit2gtk2.40.3-1DEBIAN-CVE-2023-32439
Debian:14webkit2gtk2.40.3-1DEBIAN-CVE-2023-32439
Debian:12wpewebkitno fix listedDEBIAN-CVE-2023-32439
Debian:13wpewebkit2.40.3-1DEBIAN-CVE-2023-32439
Debian:14wpewebkit2.40.3-1DEBIAN-CVE-2023-32439
Rocky Linux:8webkit2gtk30:2.38.5-1.el8_8.5RLSA-2023:4202
Rocky Linux:9webkit2gtk30:2.38.5-1.el9_2.3RLSA-2023:4201
Ubuntu:22.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2023-32439
Ubuntu:24.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2023-32439
Ubuntu:22.04:LTSwebkit2gtk2.40.4-0ubuntu0.22.04.1UBUNTU-CVE-2023-32439
Ubuntu:22.04:LTSwebkit2gtk2.40.4-0ubuntu0.22.04.1USN-6264-1
Ubuntu:22.04:LTSwpewebkitno fix listedUBUNTU-CVE-2023-32439

Affected products (as reported)

VendorProductVersions
Apple iOS and iPadOS unspecified – before 15.7
Apple Safari unspecified – before 16.5
Apple iOS and iPadOS unspecified – before 16.5
Apple macOS unspecified – before 13.4

Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References