QID 198372

Date Published: 2021-05-27

QID 198372: Ubuntu Security Notification for Intel Microcode vulnerabilities (USN-4628-3)

Usn-4628-1 provided updated intel processor microcode for various processor typesthe intel running average power limit (rapl) feature of some intel processors allowed a side- channel attack based on power consumption measurements. some intel(r) processors did not properly remove sensitive information before storage or transfer in some situations. some intel(r) processors did not properly isolate shared resources in some situations.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

this update provides the corresponding updates for some additional processor types.
A local attacker could possibly use this to expose sensitive information. (
cve-2020-8695).
A local attacker could possibly use this to expose sensitive information. (
cve-2020-8696).
A local attacker could possibly use this to expose sensitive information. (
cve-2020-8698).

  • CVSS V3 rated as Medium - 5.5 severity.
  • CVSS V2 rated as Low - 2.1 severity.
    • Solution
    Refer to Ubuntu advisory: USN-4628-3 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198372

    CVE-2020-8696 | CVE-2020-8695 | CVE-2020-8698 |
    Software Advisories
    Advisory ID Software Component Link
    USN-4628-3 Ubuntu Linux URL Logo usn.ubuntu.com/4628-3
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