Moderate Security Vulnerability in kernel-rt Package: Multiple CVEs Addressed
Summary
ALSA-2024:8870: Moderate: kernel-rt security update. Affects kernel-rt versions < 4.18.0-553.27.1.rt7.368.el8_10. Fixed in 4.18.0-553.27.1.rt7.368.el8_10. How to fix ↓
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Background
The kernel-rt package provides the Real Time Linux Kernel, which is designed for systems requiring high determinism. It enables fine-tuning for performance-critical applications, ensuring timely processing of tasks. However, the kernel-rt package is susceptible to various security vulnerabilities that can compromise system integrity and performance.
Vulnerability Detail
This vulnerability arises from multiple issues within the kernel-rt package, including race conditions, null pointer dereferences, and memory leaks. These vulnerabilities can lead to system crashes, unauthorized access, or data corruption. Notable CVEs include CVE-2024-24857, which involves a race condition in Bluetooth connection handling, and CVE-2024-41009, which addresses overrunning reservations in the ring buffer. The cumulative effect of these vulnerabilities poses a significant risk to system stability and security.
How To Fix
Minimum fixed version
4.18.0-553.27.1.rt7.368.el8_10
This is the first release that contains the fix.
sudo dnf update kernel-rtTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
While waiting for the update, consider disabling any non-essential services that rely on the affected kernel features. This may reduce the risk of exploitation until the patch is applied.
Conclusion
The kernel-rt package has been identified with several vulnerabilities that could impact system security and performance. It is crucial to update to the latest patched version to mitigate these risks. Users should also consider using tools like Vulert to monitor their applications for vulnerabilities.
See every vulnerability recorded for kernel-rt →
FAQ
Kernel-rt is a Real Time Linux Kernel package designed for applications that require high precision and low latency in processing tasks.
CVE stands for Common Vulnerabilities and Exposures, which are publicly disclosed cybersecurity vulnerabilities and exposures.
You can use Vulert, which monitors open-source vulnerabilities in your software. By uploading your manifest file, you can check for vulnerabilities without any installation.
If immediate updates are not possible, consider applying workarounds such as disabling affected services to minimize risk.
Detailed information about the vulnerabilities can be found on the respective CVE pages linked in the advisory.
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