Privilege escalation in ARM Mali GPU kernel drivers

1) Use-after-free

EUVDB-ID: #VU76981

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-2022-28349

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a malicious 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 with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Midgard GPU Kernel Driver: before r30p0

Bifrost GPU Kernel Driver: before r24p0

Valhall GPU Kernel Driver: before r24p0

CPE2.3

External links

http://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
http://developer.arm.com/support/arm-security-updates

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.