Inclusion of Functionality from Untrusted Control Sphere in InsydeH2O Kernel - CVE-2020-27339

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Main Vulnerability Database Vulnerabilities #VU60268

Inclusion of Functionality from Untrusted Control Sphere in InsydeH2O Kernel - CVE-2020-27339

Published: February 3, 2022


Vulnerability identifier: #VU60268
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27339
CWE-ID: CWE-829
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
InsydeH2O Kernel
Software vendor:
Insyde Software

Description

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

The vulnerability exists due to improper usage of Insyde firmware’s SMM services in the handler for IDE devices. A local administrator can gain escalated privileges or access to privileged information.


Remediation

Install updates from vendor's website.

External links