Moderate: libvirt security update
Summary
ALSA-2024:4757: Moderate: libvirt security update. Affects libvirt versions < 10.0.0-6.6.el9_4.alma.1. Fixed in 10.0.0-6.6.el9_4.alma.1. How to fix ↓
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Background
The libvirt package provides user-space components used to run virtual machines using Kernel-based Virtual Machine (KVM) on Linux. It also offers APIs for managing and interacting with virtualized systems.
Vulnerability Detail
A stack use-after-free vulnerability was discovered in the virNetClientIOEventLoop() function of libvirt. This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by sending specially crafted network traffic to a libvirt client.
How To Fix
Minimum fixed version
10.0.0-6.6.el9_4.alma.1
This is the first release that contains the fix.
sudo dnf update libvirtTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There are no known workarounds for this vulnerability.
Conclusion
A stack use-after-free vulnerability has been discovered in the libvirt package, which could allow an attacker to execute arbitrary code or cause a denial of service. It is recommended to update the libvirt package to the latest version to mitigate this vulnerability.
See every vulnerability recorded for libvirt →
FAQ
Libvirt is a collection of software tools that provides a convenient way to manage virtualization technologies, such as KVM, Xen, and LXC, on Linux systems.
A stack use-after-free vulnerability occurs when a program uses a memory address after it has been freed. This can lead to memory corruption and potentially allow an attacker to execute arbitrary code or cause a denial of service.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
There are no known exploits for this vulnerability at the time of this advisory. However, it is important to apply the recommended update to mitigate the risk.
Yes, you can find more details about this vulnerability, including the impact and CVSS score, on the CVE page: CVE-2024-4418.
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