Vulnerability identifier: #VU80875

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36338

CWE-ID: CWE-94

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Insyde Kernel
Operating systems & Components / Operating system

Vendor:

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the FwBlockServiceSmm driver of InsydeH2O. A local administrator can send a specially crafted request and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://www.insyde.com/security-pledge
http://www.insyde.com/security-pledge/SA-2022029
http://binarly.io/advisories/BRLY-2022-017/index.html

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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.