GNU GRand Unified Bootloader (GRUB) 2 1.97 only compares the submitted portion of a password with the actual password, which makes it easier for physically proximate attackers to conduct brute force attacks and bypass authentication by submitting a password whose length is 1.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Grub_2 | Gnu | 1.97 (including) | 1.97 (including) |
| Grub2 | Ubuntu | devel | * |
| Grub2 | Ubuntu | karmic | * |
| Grub2 | Ubuntu | upstream | * |