Multiple vulnerabilities in Mali GPU Userspace and Kernel drivers

Published: 2023-12-04

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-32804 CVE-2023-3889
CWE-ID	CWE-119 CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Arm 5th Gen GPU Architecture Kernel Driver Hardware solutions / Firmware Valhall GPU Kernel Driver Hardware solutions / Drivers Bifrost GPU Kernel Driver Hardware solutions / Drivers Midgard GPU Kernel Driver Hardware solutions / Drivers
Vendor	ARM

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU80048

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-2023-32804

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in Mali GPU Userspace Driver. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Arm 5th Gen GPU Architecture Kernel Driver: r41p0 - r44p0

Valhall GPU Kernel Driver: r19p0 - r44p0

Bifrost GPU Kernel Driver: r24p0 - r44p0

Midgard GPU Kernel Driver: r12p0 - r32p0

External links

http://chromereleases.googleblog.com/2023/08/stable-channel-update-for-chromeos_25.html

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: #VU83835

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-2023-3889

CWE-ID: CWE-416 - Use After Free