NIXPKGS-2025-0017
GitHub issue
published on 18 Dec 2025
Permalink
CVE-2025-61663
4.9 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): LOCAL
- Attack complexity (AC): HIGH
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): LOW
- Integrity impact (I): LOW
- Availability impact (A): LOW
by @LeSuisse Activity log
- Created automatic suggestion
-
@LeSuisse
removed
4 maintainers
- @SigmaSquadron
- @hehongbo
- @digitalrane
- @CertainLach
-
@LeSuisse
removed
2 packages
- grub2_pvgrub_image
- grub2_pvhgrub_image
- @LeSuisse accepted
- @LeSuisse published on GitHub
Grub2: missing unregister call for normal commands may lead to use-after-free
A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability. Impact on the data integrity and confidentiality is also not discarded.
References
- https://access.redhat.com/security/cve/CVE-2025-61663 x_refsource_REDHAT vdb-entry
- RHBZ#2414684 issue-tracking x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-61663 x_refsource_REDHAT vdb-entry
- RHBZ#2414684 issue-tracking x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-61663 x_refsource_REDHAT vdb-entry
- RHBZ#2414684 issue-tracking x_refsource_REDHAT
Affected products
grub2
- =<2.14
rhcos