QID 353194

Date Published: 2022-03-09

QID 353194: Amazon Linux Security Advisory for microcode_ctl : ALAS2-2022-1762

A flaw was found in microcode.
Under complex microarchitectural conditions, an unexpected code breakpoint may cause a system hang.
The hang was observed on a skylake server processor, and subsequent analysis indicated additional potentially affected processors.
This flaw allows a possible temporary denial of service (tdos) to occur. (
( CVE-2021-0127) hardware allows activation of test and debug logic at runtime for some intel(r) processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access. (
( CVE-2021-0146)



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.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 6.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1762 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353194

    CVE-2021-0146 | CVE-2021-0127 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1762 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1762.html
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