QID 353127

Date Published: 2022-02-01

QID 353127: Amazon Linux Security Advisory for glibc : ALAS2-2022-1736

The mq_notify function in the gnu c library (aka glibc) has a use-after-free.
It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact. (
( CVE-2021-33574)



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 Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1736 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353127

    CVE-2021-33574 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1736 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1736.html
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