#VU80868 Buffer overflow in Insyde Kernel - CVE-2022-35893

Vulnerability identifier: #VU80868

Vulnerability 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

Exploitation vector: Local

Exploit availability: No

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

Vendor: Insyde Software

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

Insyde Kernel: before 5.0

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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

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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.