In Lenovo systems, SMM BIOS Write Protection is used to prevent writes to SPI Flash. While this provides sufficient protection, an additional layer of protection is provided by SPI Protected Range Registers (PRx). Lenovo was notified that after resuming from S3 sleep mode in various versions of BIOS for Lenovo systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
Fixes

Solution

No action required. Lenovo has updated BIOS for systems in the product impact section to implement this secondary protection, PRx.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: lenovo

Published:

Updated: 2024-09-16T22:02:37.776Z

Reserved: 2019-01-11T00:00:00

Link: CVE-2019-6156

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-04-10T17:29:00.463

Modified: 2024-11-21T04:46:02.577

Link: CVE-2019-6156

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.