Comment on Microsoft waited 6 months to patch actively exploited admin-to-kernel vulnerability
technohacker@programming.dev 8 months agoGenerally yes. For many distros, the kernel signing key is with the distro maintainers and so the package comes with pre-signed kernel images. For distros like Arch and Gentoo, it’s the user’s responsibility to maintain the signing key and sign each updated kernel
hddsx@lemmy.ca 8 months ago
So why can’t root add new keys?
technohacker@programming.dev 8 months ago
The firmware has to allow it, so if you’ve got physical access to the machine that’s possible. Remote access root, on the other hand, can’t tell the firmware to register new keys as long as it’s configured correctly