Intel Microcode Vulnerability: CVE-2020-0549 - Information Disclosure Risk
Summary
UBUNTU-CVE-2020-0549: Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Affects intel-microcode versions < 3.20200609.0ubuntu0.14.04.0. Fixed in 3.20200609.0ubuntu0.14.04.0. How to fix ↓
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Background
The 'intel-microcode' package is essential for updating the microcode of Intel processors, ensuring optimal performance and security. It addresses various processor bugs and vulnerabilities by providing updates that enhance system stability and security. This package is particularly significant for users running Ubuntu LTS versions, as it directly impacts the reliability and security of Intel hardware.
Vulnerability Detail
CVE-2020-0549 is a vulnerability that arises from cleanup errors in data cache evictions for certain Intel processors. This flaw may allow an authenticated user to potentially enable information disclosure via local access. The vulnerability poses a risk of sensitive information being exposed, which could be exploited by malicious actors with local access to the system. The CVSS score for this vulnerability is 5.5, indicating a medium level of severity.
How To Fix
Minimum fixed version
3.20200609.0ubuntu0.14.04.0
This is the first release that contains the fix.
sudo apt-get install --only-upgrade intel-microcodeTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the available updates as soon as possible.
Conclusion
CVE-2020-0549 is a significant vulnerability affecting the intel-microcode package across several Ubuntu LTS versions. Users are strongly advised to update their packages to the latest patched versions to protect against potential information disclosure risks. Regular monitoring and timely updates are essential for maintaining system security.
See every vulnerability recorded for intel-microcode →
FAQ
CVE-2020-0549 is a vulnerability in the intel-microcode package that may allow information disclosure due to cleanup errors in data cache evictions for certain Intel processors.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring signup.
While there are no specific workarounds, it is crucial to plan for an update as soon as possible to mitigate the risk of information disclosure.
The vulnerability affects multiple versions of Ubuntu, including 14.04 LTS, 16.04 LTS, 18.04 LTS, and 20.04 LTS.
The CVSS score for CVE-2020-0549 is 5.5, indicating a medium level of severity.
Related vulnerabilities
Recent vulnerabilities recorded for intel-microcode.
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