#VU76978 Use-after-free in ARM products - CVE-2023-28147

Vulnerability identifier: #VU76978

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-28147

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Midgard GPU Kernel Driver
Hardware solutions / Drivers
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 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

Midgard GPU Kernel Driver: r29p0 - r32p0

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

Bifrost GPU Kernel Driver: before r43p0

Valhall GPU Kernel Driver: before r43p0

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External links
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

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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.