QID 353125

Date Published: 2022-02-01

QID 353125: Amazon Linux Security Advisory for krb5 : ALAS2-2022-1738

A flaw was found in krb5.
The key distribution center (kdc) in mit kerberos 5 has a null pointer dereference via a fast inner body that lacks a server field.
An authenticated attacker could use this flaw to crash the kerberos kdc server.
The highest threat from this vulnerability is to system availability. (
( CVE-2021-37750)



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 - 6.5 severity.
  • CVSS V2 rated as Medium - 4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1738 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353125

    CVE-2021-37750 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1738 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1738.html
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