Privilege escalation in Arm Mali GPU Kernel Driver

1) Buffer overflow

EUVDB-ID: #VU81405

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-2021-44828

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. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Midgard GPU Kernel Driver: before r32p0

Bifrost GPU Kernel Driver: before r35p0

Valhall GPU Kernel Driver: before r35p0

CPE2.3

External links

http://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver

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.