Vulnerability identifier: #VU83832

Vulnerability 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-2023-5427

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
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

Description

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

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Bifrost GPU Kernel Driver: r44p0 - r45p0

Valhall GPU Kernel Driver: r44p0 - r45p0

Arm 5th Gen GPU Architecture Kernel Driver: r44p0 - r45p0

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External links
http://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.html

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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.