Critical Escalation of Privilege Vulnerability in Intel Microcode Packages
Summary
UBUNTU-CVE-2024-29214: Improper input validation in UEFI firmware CseVariableStorageSmm for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access. Affects intel-microcode versions 1.20130906.1ubuntu2 – 3.20210608.0ubuntu0.14.04.1+esm1. No fix is published. How to fix ↓
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Background
Intel Microcode is a crucial component that updates the processor's firmware to enhance performance and security. It plays a vital role in ensuring that Intel processors operate correctly and securely. The vulnerability in question affects multiple versions of the Intel Microcode across various Ubuntu LTS distributions, making it imperative for users to address this issue promptly.
Vulnerability Detail
The vulnerability, identified as CVE-2024-29214, stems from improper input validation in the UEFI firmware CseVariableStorageSmm for certain Intel processors. This flaw could allow a privileged user to escalate their privileges via local access, potentially leading to unauthorized access to sensitive data or system control. The severity of this vulnerability is underscored by its CVSS score of 7.5, indicating a high risk to affected systems.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary measure, users can limit local access to systems running affected versions of Intel Microcode. This can be done by implementing stricter user permissions and monitoring local access logs to detect any unauthorized attempts.
Conclusion
The CVE-2024-29214 vulnerability poses a significant risk to users of Intel Microcode across various Ubuntu distributions. It is crucial for users to update their systems promptly to the latest patched versions to mitigate potential threats. Additionally, utilizing tools like Vulert can help monitor and alert for vulnerabilities in real-time.
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FAQ
CVE-2024-29214 is a vulnerability in Intel Microcode that allows a privileged user to escalate their privileges via local access due to improper input validation.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without any signup.
If exploited, this vulnerability could allow unauthorized users to gain elevated privileges, potentially compromising sensitive data and system integrity.
Yes, users should update their Intel Microcode package to the latest version to mitigate the risk associated with this vulnerability.
If immediate updates are not possible, consider implementing stricter user permissions and monitoring local access to minimize the risk of exploitation.
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