NIXPKGS-2025-0016
GitHub issue
published on 18 Dec 2025
Permalink
CVE-2025-61661
4.8 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): PHYSICAL
- Attack complexity (AC): HIGH
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): LOW
- Availability impact (A): HIGH
by @LeSuisse Activity log
- Created automatic suggestion
-
@LeSuisse
removed
4 maintainers
- @SigmaSquadron
- @hehongbo
- @digitalrane
- @CertainLach
-
@LeSuisse
removed
2 packages
- grub2_pvhgrub_image
- grub2_pvgrub_image
- @LeSuisse accepted
- @LeSuisse published on GitHub
Grub2: out-of-bounds write
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
References
- https://access.redhat.com/security/cve/CVE-2025-61661 x_refsource_REDHAT vdb-entry
- RHBZ#2413827 issue-tracking x_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2025/11/18/8
- https://access.redhat.com/security/cve/CVE-2025-61661 x_refsource_REDHAT vdb-entry
- RHBZ#2413827 issue-tracking x_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2025/11/18/8
- https://access.redhat.com/security/cve/CVE-2025-61661 x_refsource_REDHAT vdb-entry
- RHBZ#2413827 issue-tracking x_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2025/11/18/8
Affected products
grub2
- =<2.14
rhcos