rear: Relax-and-Recover (aka ReaR) through 2.7 creates a world-readable initrd when using GRUB_RESCUE=y
CVE-2024-23301 is fixed in rear on 1 platform, first by rear 2.3+dfsg-1ubuntu0.1~esm1, released January 12, 2024. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rear · Debian 11.6 (bullseye) | 2.6+dfsg-1+deb11u1 | DLA-4400-1 | Dec 10, 2025 |
| rear · Debian 12.15 (bookworm) | 2.7+dfsg-1+deb12u1 | DEBIAN-CVE-2024-23301 | Jan 12, 2024 |
| rear · Debian 13.5 (trixie) | 2.7+dfsg-1.2 | DEBIAN-CVE-2024-23301 | Jan 12, 2024 |
| rear · Debian 14 | 2.7+dfsg-1.2 | DEBIAN-CVE-2024-23301 | Jan 12, 2024 |
| rear · RHEL 8 | 0:2.6-11.el8_9 | RHSA-2024:1719 | Apr 9, 2024 |
| rear · RHEL 9 | 0:2.6-21.el9_3 | RHSA-2024:1147 | Mar 5, 2024 |
| rear · Ubuntu 18.04.6 LTS (bionic) | 2.3+dfsg-1ubuntu0.1~esm1 | rear 2.3+dfsg-1ubuntu0.1~esm1 | Jan 12, 2024 |
| rear · Ubuntu 20.04 LTS (focal) | 2.5+dfsg-1ubuntu0.1~esm1 | rear 2.5+dfsg-1ubuntu0.1~esm1 | Jan 12, 2024 |
| rear · Ubuntu 22.04.1 LTS (jammy) | 2.6+dfsg-1+deb11u1build0.22.04.1 | rear 2.6+dfsg-1+deb11u1build0.22.04.1 | Jan 12, 2024 |
| rear · almalinux 8 | 2.6-11.el8_9.alma.1 | ALSA-2024:1719 | Apr 9, 2024 |
| rear · almalinux 9 | 2.6-21.el9_3.alma | ALSA-2024:1147 | Mar 5, 2024 |
| rear · ol 8 | 0:2.6-11.0.1.el8_9 | ELSA-2024-1719 | Apr 9, 2024 |
| rear · ol 9 | 0:2.6-21.0.1.el9_3 | ELSA-2024-1147 | Mar 6, 2024 |
| rear · rocky 8 | 0:2.6-11.el8_9 | RLSA-2024:1719 | May 6, 2024 |
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