Multiple vulnerabilities in Mali GPU Kernel Drivers

Published: 2023-10-02

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-33200 CVE-2023-34970
CWE-ID	CWE-416 CWE-362
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Bifrost GPU Kernel Driver Hardware solutions / Drivers Valhall 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: #VU81406

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-33200

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Bifrost GPU Kernel Driver: r29p0 - r42p0

Valhall GPU Kernel Driver: r29p0 - r42p0

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

External links

http://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities#CVE-2023-33200

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) Race condition

EUVDB-ID: #VU81407

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-34970

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition. A local user can exploit the race to trigger a use-after-free and execute arbitrary code with elevated privileges.