QID 671029

Date Published: 2021-11-24

QID 671029: EulerOS Security Update for krb5 (EulerOS-SA-2021-2664)

Kerberos V5 is a trusted-third-party network authentication system, which can improve your network's security by eliminating the insecure practice of sending passwords over the network in unencrypted form. Security Fix(es): 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.

An arbitrary attacker may exploit this vulnerability to compromise the system.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as Medium - 4 severity.
    • Solution
    The Vendor has released a security update to fix the vulnerability. For more information please visit EulerOS-SA-2021-2664 for updates and patch information
    Vendor References

    CVEs related to QID 671029

    CVE-2021-37750 |
    Software Advisories
    Advisory ID Software Component Link
    EulerOS-SA-2021-2664 EulerOS V2.0SP5 URL Logo developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2664
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