Use-after-free in Apple iOS and iPadOS - CVE-2023-27969

Vulnerability identifier: #VU74082

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-27969

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the OS kernel. A local application can trigger a use-after-free error and execute arbitrary code with kernel privileges.

Apple iOS
iPadOS
watchOS
macOS
tvOS

Install updates from vendor's website.

Apple iOS - addressed in versions 16.4 20E247, 15.7.4 19H321
iPadOS - addressed in versions 16.4 20E247, 15.7.4 19H321
watchOS - update to 9.4 20T253
macOS - update to 13.3 22E252
tvOS - update to 16.4 20L497

• https://support.apple.com/en-us/HT213676

• Multiple vulnerabilities in Apple iOS 16 and iPadOS 16
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in macOS Ventura
• Multiple vulnerabilities in Apple iOS 15 and iPadOS 15