Intel Microcode Vulnerability: Information Disclosure Risk in Ubuntu Packages

intel-microcode Updated 02 Oct 2025

Summary

10/11/2020
N/A
Yes i
Medium
5.5

UBUNTU-CVE-2020-8698: Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. Affects intel-microcode versions < 3.20201110.0ubuntu0.14.04.1. Fixed in 3.20201110.0ubuntu0.14.04.1. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

Background

The 'intel-microcode' package is essential for updating the microcode of Intel processors, ensuring optimal performance and security. This package is widely used across various Ubuntu distributions, including LTS versions. The vulnerability in question affects multiple versions of this package, potentially exposing sensitive information to authenticated users.

Vulnerability Detail

The vulnerability, identified as CVE-2020-8698, arises from improper isolation of shared resources in some Intel processors. This flaw allows an authenticated user to potentially enable information disclosure via local access. The implications of this vulnerability are significant, as it could lead to unauthorized access to sensitive data stored in the system, thereby compromising user privacy and security.

How To Fix

Minimum fixed version

3.20201110.0ubuntu0.14.04.1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade intel-microcode

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

As a temporary workaround, users can limit access to the affected systems and monitor user activities to mitigate the risk of information disclosure until the package is updated.

Conclusion

The CVE-2020-8698 vulnerability in the 'intel-microcode' package poses a significant risk of information disclosure for users of affected Ubuntu distributions. It is crucial to update to the patched versions to ensure system security and protect sensitive data.

See every vulnerability recorded for intel-microcode →

Share this vulnerability

FAQ

CVE-2020-8698 is a vulnerability in Intel processors that allows authenticated users to potentially disclose sensitive information due to improper isolation of shared resources.

You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.

The vulnerability could lead to unauthorized access to sensitive data, compromising user privacy and security.

Yes, patched versions of the 'intel-microcode' package are available for various Ubuntu distributions. Users should update to these versions to mitigate the vulnerability.

Vulert monitors and alerts for open-source vulnerabilities in software using a manifest file like package-lock.json. It provides real-time alerts without requiring code access or installation.

Related vulnerabilities

Recent vulnerabilities recorded for intel-microcode.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

Minimum fixed version

3.20201110.0ubuntu0.14.04.1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade intel-microcode

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback