Buffer Over-read Vulnerability in Lenovo ThinkPad X13s BIOS Driver
CVE-2022-4433

6.7MEDIUM

Key Information:

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

Summary

A buffer over-read vulnerability was discovered in the BIOS driver of the Lenovo ThinkPad X13s, specifically in the LenovoSetupConfigDxe component. This flaw could enable a local attacker with appropriate privileges to access sensitive information, potentially leading to unauthorized data exposure. Lenovo has released guidance and patches to mitigate this vulnerability, and users are recommended to upgrade their BIOS to the latest version to protect against potential attacks.

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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