Multiple vulnerabilities in ARM Mali GPU kernel drivers

Published: 2023-06-06

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-28469 CVE-2023-28147
CWE-ID	CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Valhall GPU Kernel Driver Hardware solutions / Drivers Midgard GPU Kernel Driver Hardware solutions / Drivers Bifrost GPU Kernel Driver Hardware solutions / Drivers Arm 5th Gen GPU Architecture Kernel Driver Hardware solutions / Firmware
Vendor	ARM

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU76979

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28469

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error. A malicious application can trigger a use-after-free error and execute arbitrary code on the device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Valhall GPU Kernel Driver: before r43p0

Arm 5th Gen GPU Architecture Kernel Driver: before r43p0

External links

http://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.

2) Use-after-free

EUVDB-ID: #VU76978