Privilege escalation in PowerVR GPU DDK

1) Out-of-bounds write

EUVDB-ID: #VU107128

Risk: Low

CVSSv4.0: 2.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-52938

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the rgxfw_pm_add_freelist_for_reconstruction() function. Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to subvert reconstruction activities to trigger a write of data outside the Guest’s virtualised GPU memory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PowerVR GPU DDK: 1.14 - 24.2.2

CPE2.3

• cpe:2.3:h:imaginationtech:powervr_gpu_ddk:1.14:*:*:*:*:*:*:*
• cpe:2.3:h:imaginationtech:powervr_gpu_ddk:1.15:*:*:*:*:*:*:*
• cpe:2.3:h:imaginationtech:powervr_gpu_ddk:1.16:*:*:*:*:*:*:*

External links

https://www.imaginationtech.com/gpu-driver-vulnerabilities/#PP-171235

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.