Information disclosure in Mali GPU Kernel Driver

1) Use-after-free

EUVDB-ID: #VU83834

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4272

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. A local user can gain access to sensitive kernel data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Midgard GPU Kernel Driver: All versions

Bifrost GPU Kernel Driver: before r42p0

Valhall GPU Kernel Driver: before r42p0

Arm 5th Gen GPU Architecture Kernel Driver: before r42p0

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.