Relax-and-Recover (aka ReaR) through 2.7 creates a world-readable initrd when using GRUB_RESCUE=y. This allows local attackers to gain access to system secrets otherwise only readable by root.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Relax-and-recover | Relax-and-recover | * | 2.7 (including) |
| Rear | Ubuntu | bionic | * |
| Rear | Ubuntu | lunar | * |
| Rear | Ubuntu | mantic | * |
| Rear | Ubuntu | trusty | * |
| Rear | Ubuntu | xenial | * |
| Red Hat Enterprise Linux 8 | RedHat | rear-0:2.6-11.el8_9 | * |
| Red Hat Enterprise Linux 9 | RedHat | rear-0:2.6-21.el9_3 | * |