UEFI Shell module embedded in SPI Flash can be used to bypass Secure Boot

Overview The UEFI Shell program may expose raw memory access capabilities that, if present in platform firmware for debugging or advanced support use cases, could be abused to undermine UEFI Secure Boot protections. When the UEFI Shell is included in SPI flash, an attacker with the ability to...

slot2 Amazon Linux 2023 UEFI Bootkit

slot2 is a two-stage UEFI GRUB2 bootkit designed to establish a persistent pre-OS implant on Amazon Linux 2023 x8664 EC2 instances. It installs a custom GRUB EFI image and Unified Kernel Image, creates a UEFI NVRAM boot entry ahead of the stock Amazon entry, executes an implant with network and...

kernel security, bug fix, and enhancement update

3.10.0-1160.62.1.OL7 - Update Oracle Linux certificates Ilya Okomin - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and shim-x64 = 15-2.0.9 - Update oraclekernel-sig-key...