Coming Soon...

Q-CERT website is currently under maintenance. We should be back shortly. Thank you for yor patience.

Lenovo Multiple BIOS Security Vulnerabilities

Issued: 
Tuesday, 20 September, 2022
Last Revision: 
Tuesday, 20 September, 2022
Vendor: 
Severity Level: 
Summary: 

Lenovo had issued security advisory for several high severity firmware vulnerabilities which impacting hundreds of products in various models.

 

Attacker can exploit these vulnerabilities to execute arbitrary code which may lead to information disclosure, privileges escalation, and denial of services.

 

 

CVE/Vulnerability

Description 

Severity

CVE-2022-40137

Buffer overflow in the WMI SMI Handler may allow an attacker with local access and elevated privileges to execute arbitrary code.

HIGH

CVE-2022-40134

An information leak vulnerability in the SMI Set BIOS Password SMI, may allow an attacker with local access and elevated privileges to read SMM memory.

HIGH

CVE-2022-40135

An information leak vulnerability in the Smart USB Protection SMI Handler may allow an attacker with local access and elevated privileges to read SMM memory.

HIGH

CVE-2022-40136

An information leak vulnerability in SMI Handler used to configure platform settings over WMI may allow an attacker with local access and elevated privileges to read SMM memory.

HIGH

 

                                                                                                           Table 1: Vulnerability details

 

 

Update Types

Affected Product(s)

 

Security Fixes

Desktop

Desktop - All in One

Hyperscale

Lenovo Notebook

Smart Office

Storage

ThinkAgile

ThinkPad

ThinkServer

ThinkStation

 

 

 

                                                                                                             Table 2: Vulnerable versions

Recommendation: 

Lenovo had recommended to update the firmware to the latest versions.