Security Vulnerability in grub2 Packages: Use-After-Free Risk
Summary
ALSA-2026:4648: Moderate: grub2 security update. Affects grub2-common versions < 1:2.02-170.el8_10.1.alma.1. Fixed in 1:2.02-170.el8_10.1.alma.1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. It supports various kernel formats, file systems, computer architectures, and hardware devices, making it essential for system boot processes. However, a security vulnerability has been identified that could compromise system integrity.
Vulnerability Detail
The vulnerability arises from a missing unregister call for the gettext command within the grub2 package, which may lead to a use-after-free condition. This flaw can potentially allow an attacker to exploit the system, leading to unauthorized access or execution of arbitrary code. The specific identifier for this vulnerability is CVE-2025-61662.
How To Fix
Minimum fixed version
1:2.02-170.el8_10.1.alma.1
This is the first release that contains the fix.
sudo dnf update grub2-commonTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the security update as soon as it is available.
Conclusion
The grub2 security vulnerability identified as CVE-2025-61662 poses a moderate risk due to a use-after-free condition. It is crucial for users to update their grub2 packages to the latest patched version to safeguard their systems from potential exploitation.
See every vulnerability recorded for grub2-common →
FAQ
The vulnerability is a use-after-free condition caused by a missing unregister call for the gettext command in the grub2 package.
Exploitation of this vulnerability could allow an attacker to execute arbitrary code or gain unauthorized access to the system.
You should update your grub2 packages to the patched version as soon as possible to mitigate the risk.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using a manifest file like package-lock.json.
You can check your application against this vulnerability using the Vulert playground at Vulert Scanner without needing to sign up.
Related vulnerabilities
Recent vulnerabilities recorded for grub2-common.
