Buffer overflow in AhciBusDxe - CVE-2021-43522

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Main Vulnerability Database Vulnerabilities #VU60271

Buffer overflow in AhciBusDxe - CVE-2021-43522

Published: February 3, 2022


Vulnerability identifier: #VU60271
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-43522
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
AhciBusDxe
Software vendor:
Insyde Software

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in SMM. A remote attacker can write fixed or predictable data to SMRAM, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.


Remediation

Install updates from vendor's website.

External links