Buffer overflow in ARM products - CVE-2021-44828

Vulnerability identifier: #VU81405

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-2021-44828

CWE-ID: CWE-119

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 boundary error. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Midgard GPU Kernel Driver
Bifrost GPU Kernel Driver
Valhall GPU Kernel Driver
Google Android

Install updates from vendor's website.

Midgard GPU Kernel Driver - update to r32p0
Bifrost GPU Kernel Driver - update to r35p0
Valhall GPU Kernel Driver - update to r35p0
Google Android - addressed in versions 11 2023-10-05, 12L 2023-10-05, 12 2023-10-05, 13 2023-10-05

• https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver

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