A flaw was found in grub2. When failing to mount an HFS+ grub, the hfsplus filesystem driver doesnt properly set an ERRNO value. This issue may lead to a NULL pointer access.
The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | RedHat | grub2-1:2.06-104.el9_6 | * |
| Grub2 | Ubuntu | esm-infra-legacy/trusty | * |
| Grub2-signed | Ubuntu | esm-infra-legacy/trusty | * |
| Grub2-signed | Ubuntu | focal | * |
| Grub2-signed | Ubuntu | oracular | * |
| Grub2-unsigned | Ubuntu | focal | * |
| Grub2-unsigned | Ubuntu | oracular | * |