Memory Leakage Vulnerability in Lenovo 534D0140 DXE Driver
CVE-2023-45076

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
BiOS
Vendor
CVE Published:
8 November 2023

Summary

A memory leakage vulnerability has been identified in the Lenovo 534D0140 DXE driver, which could potentially allow a local attacker with elevated privileges to manipulate non-volatile RAM (NVRAM) variables. This vulnerability exposes critical system information, allowing attackers to execute unauthorized actions that might compromise system integrity and availability. It is crucial for users and administrators to apply the latest updates and patches to mitigate this risk.

Affected Version(s)

BIOS various

References

https://support.lenovo.com/us/en/product_security/LEN-141775

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 Souhardya Sardar of Cyberstanc for reporting this issue.
.