Important: kernel-rt security and bug fix update
Summary
ALSA-2023:0114: Important: kernel-rt security and bug fix update. Affects kernel-rt versions < 4.18.0-425.10.1.rt7.220.el8_7. Fixed in 4.18.0-425.10.1.rt7.220.el8_7. How to fix ↓
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Background
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Vulnerability Detail
This update addresses two security vulnerabilities:
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CVE-2022-2964: A memory corruption vulnerability in AX88179_178A based USB ethernet devices could lead to arbitrary code execution.
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CVE-2022-4139: An incorrect GPU TLB flush in the i915 driver could result in random memory access.
These vulnerabilities could be exploited by attackers to gain unauthorized access, execute arbitrary code, or cause system instability.
How To Fix
Minimum fixed version
4.18.0-425.10.1.rt7.220.el8_7
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 →
Conclusion
It is crucial to update the kernel-rt package to address these security vulnerabilities. Failure to do so could result in unauthorized access, arbitrary code execution, system instability, or potential information disclosure. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for kernel-rt →
FAQ
CVE-2022-2964 could allow an attacker to execute arbitrary code on a system with an AX88179_178A based USB ethernet device. This could lead to unauthorized access, data theft, or system compromise.
CVE-2022-4139 could result in random memory access on systems using the i915 driver. This could lead to system instability, crashes, or potential information disclosure.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by these vulnerabilities. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities.
At the moment, there are no known workarounds for these vulnerabilities. It is recommended to apply the provided security update as soon as possible.
You can find more information about these vulnerabilities, including the CVSS scores and acknowledgments, on the CVE pages: CVE-2022-2964 and CVE-2022-4139.
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