Buffer Over-Read Vulnerability in ThinkPad BIOS by Lenovo
CVE-2022-4435

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
Thinkpad X13s
Vendor
CVE Published:
5 January 2023

Summary

A buffer over-read vulnerability was identified in the BIOS of the ThinkPad X13s, specifically within the Lenovo Remote Config Update Dxe driver. An attacker with local access and elevated privileges could exploit this weakness to gain unauthorized access to sensitive information, potentially leading to severe security compromises.

Affected Version(s)

ThinkPad X13s Versions prior to 1.47

References

https://support.lenovo.com/us/en/product_security/LEN-103709

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lenovo thanks BINARLY efiXplorer team for reporting these issues.
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