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CVE-2019-6156
Published: Apr 10, 2019
Modified: Sep 16, 2024
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Lenovo | BIOS | affected various |
References
https://support.lenovo.com/solutions/LEN-26332
x_refsource_MISC
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