Buffer Overflow in BiosExtensionLoader Module Affects Lenovo Desktop Products
CVE-2023-43571

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
Desktop BiOS
Vendor
CVE Published:
8 November 2023

Summary

A buffer overflow vulnerability has been identified in the BiosExtensionLoader module utilized by certain Lenovo Desktop products. This flaw may permit a local attacker, who possesses elevated privileges, the potential to execute arbitrary code. Mitigating this vulnerability is crucial to maintaining the integrity and security of affected systems. For more information, consult Lenovo's security bulletin.

Affected Version(s)

Desktop 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 Zichuan Li (@Ri7erLi) from Indiana University Bloomington for reporting this vulnerability.
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