CVE-2020-8341

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 ThinkPa...

HPSBHF03598 rev. 6 - EDK II Untested Memory Not Covered by SMM Page Protections

Potential Security Impact Escalation of Privilege, Information Disclosure Source: HP, HP Product Security Response Team PSRT Reported By: TianoCore Bugzilla VULNERABILITY SUMMARY Incorrect handling of memory types in TianoCore firmware potentially allows an attacker with local access to bypass...