Privilege escalation in Mali GPU Kernel Driver

1) Use-after-free

EUVDB-ID: #VU83833

Risk: Low

CVSSv4.0: 5.9 [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/E:U/U:Clear]

CVE-ID: CVE-2023-4295

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error caused by improper GPU memory processing operations. A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Valhall GPU Kernel Driver: r29p0 - r42p0

Arm 5th Gen GPU Architecture Kernel Driver: r41p0 - r42p0

CPE2.3

• cpe:2.3:h:arm:valhall_gpu_kernel_driver:r29p0:*:*:*:*:*:*:*
• cpe:2.3:h:arm:valhall_gpu_kernel_driver:r30p0:*:*:*:*:*:*:*
• cpe:2.3:h:arm:valhall_gpu_kernel_driver:r35p0:*:*:*:*:*:*:*
• cpe:2.3:h:arm:arms_gpu_architecture_gen5_kernel_driver:r41p0:*:*:*:*:*:*:*
• cpe:2.3:h:arm:arms_gpu_architecture_gen5_kernel_driver:r42p0:*:*:*:*:*:*:*

External links

https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.