Code execution in Insyde Kernel

1) Buffer overflow

EUVDB-ID: #VU80868

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-35893

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in InsydeH2O in the FvbServicesRuntimeDxe driver. A local administrator can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InsydeH2O Kernel: before

CPE2.3

• cpe:2.3:h:insyde_software:insyde_kernel:*:*:*:*:*:*:*:*

External links

https://www.insyde.com/security-pledge/SA-2022035
https://www.insyde.com/security-pledge
https://binarly.io/advisories/BRLY-2022-026/index.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.