Denial of Service Vulnerability in Intel Microcode for Debian Systems
Summary
CVE-2024-37020: Sequence of processor instructions leads to unexpected behavior in the Intel(R) DSA V1.0 for some Intel(R) Xeon(R) Processors may allow an authenticated user to potentially enable denial of service via local access. Affects intel-ucode versions < 20250211-r0. Fixed in 20250211-r0. How to fix ↓
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Background
Intel Microcode is a critical component that updates the processor's firmware to improve performance and security. It plays a vital role in ensuring that Intel processors operate correctly and securely. The affected versions of Intel Microcode in Debian 11, 12, and 13 are susceptible to a specific vulnerability that could allow an authenticated user to cause a denial of service through local access.
Vulnerability Detail
CVE-2024-37020 is a vulnerability that arises from a sequence of processor instructions leading to unexpected behavior in Intel(R) DSA V1.0 for certain Intel(R) Xeon(R) Processors. This flaw can potentially allow an authenticated user to enable a denial of service condition, which could disrupt the normal operation of the affected system. The vulnerability affects multiple Debian ecosystems, including versions 11, 12, and 13, and is characterized by its ability to be exploited through local access.
How To Fix
Minimum fixed version
20250211-r0
This is the first release that contains the fix.
sudo apk add --upgrade intel-ucodeTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, no specific workarounds have been provided for this vulnerability. It is recommended to apply the patch as soon as it becomes available.
Conclusion
CVE-2024-37020 represents a significant vulnerability in Intel Microcode that could allow an authenticated user to cause a denial of service on affected Debian systems. Users are urged to update their systems promptly to mitigate this risk.
See every vulnerability recorded for intel-ucode →
FAQ
CVE-2024-37020 is a vulnerability in Intel Microcode that can lead to denial of service due to unexpected processor behavior.
The vulnerability affects Intel Microcode on Debian systems, specifically versions 11, 12, and 13.
You can use Vulert, which allows you to monitor and alert for open-source vulnerabilities in your software. Check your application against the vulnerability using the Vulert playground at Vulert Scanner.
Yes, users should update their intel-microcode package to the latest version available in the Debian repositories to mitigate the vulnerability.
While no specific workarounds are available, it is crucial to apply the patch as soon as possible to protect your system from potential denial of service attacks.
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