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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: lenovo

Published: 2019-04-10T17:04:19.908080Z

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 : Analyzed

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

Modified: 2020-08-24T17:37:01.140

Link: CVE-2019-6156

cve-icon Redhat

No data.