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). After resuming from S3 sleep mode in various versions of BIOS for some Lenovo ThinkPad systems, the PRx is not set. This does not impact the SMM BIOS Write Protection, which keeps systems protected.
References
Link | Resource |
---|---|
https://support.lenovo.com/us/en/product_security/LEN-30042 | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: lenovo
Published: 2020-09-01T00:00:00
Updated: 2020-09-01T21:30:16
Reserved: 2020-01-28T00:00:00
Link: CVE-2020-8341
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-09-01T22:15:10.377
Modified: 2020-09-11T16:21:52.787
Link: CVE-2020-8341
JSON object: View
Redhat Information
No data.
CWE