Security Bulletin
Summary
MIT Kerberos 5 (krb5) is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVE.
Vulnerability Details
DESCRIPTION: MIT Kerberos 5 (aka krb5) is vulnerable to a denial of service, caused by an unbounded recursion flaw in lib/krb5/asn.1/asn1_encode.c. By sending a specially-crafted ASN.1-encoded Kerberos message, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191321 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| HMC V9.2.950.0 | V9.2.950.0 |
| HMC V10.1.1010.0 | V10.1.1010.0 |
Remediation/Fixes
Remediation/Fixes
The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
22 Nov 2021: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
22 November 2021
UID
ibm16518312