Use-after-free in Mali GPU kernel drivers

1) Use-after-free

EUVDB-ID: #VU74383

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-2022-36449

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error. A local application can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Midgard GPU Kernel Driver: All versions

Bifrost GPU Kernel Driver: before r40p0

Valhall GPU Kernel Driver: before r40p0

External links

http://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
http://packetstormsecurity.com/files/168431/Arm-Mali-Released-Buffer-Use-After-Free.html
http://packetstormsecurity.com/files/168434/Arm-Mali-CSF-Missing-Buffer-Size-Check.html
http://packetstormsecurity.com/files/168432/Arm-Mali-Physical-Address-Exposure.html
http://packetstormsecurity.com/files/168433/Arm-Mali-Race-Condition.html

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.