Use-after-free in ARM products - CVE-2023-5427

Vulnerability identifier: #VU83832

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-2023-5427

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 caused by improper GPU processing operations. A local application can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Bifrost GPU Kernel Driver
Valhall GPU Kernel Driver
Arm 5th Gen GPU Architecture Kernel Driver
Google Android

Install updates from vendor's website.

Bifrost GPU Kernel Driver - update to r46p0
Valhall GPU Kernel Driver - update to r46p0
Arm 5th Gen GPU Architecture Kernel Driver - update to r46p0
Google Android - addressed in versions 11 2024-01-05, 12L 2024-01-05, 12 2024-01-05, 13 2024-01-05, 14 2024-01-05

• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.html

• Privilege escalation in Mali GPU Kernel Driver
• Multiple vulnerabilities in Google Android