IBM Support

Security Bulletin: Vulnerabilities in Kerberos affect Power Hardware Management Console (CVE-2017-11368, CVE-2017-7562)

Created by Vardhaman Nara… on
Published URL:
https://www.ibm.com/support/pages/node/717893
717893

Security Bulletin


Summary

Kerberos is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVEs

Vulnerability Details

CVEID: CVE-2017-11368
DESCRIPTION: MIT Kerberos 5 is vulnerable to a denial of service, caused by a KDC assertion failure. By sending a specially-crafted request, a remote authenticated attacker could exploit this vulnerability to cause memory allocation failure.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130207 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

 

CVEID: CVE-2017-7562
DESCRIPTION: MIT krb5 could allow a remote authenticated attacker to bypass security restrictions, caused by the improper validation of a forged certificate EKU and SAN. An attacker could exploit vulnerability to gain unauthorized access to the system to impersonate arbitrary principals under rare and erroneous circumstances.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/143332 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

Affected Products and Versions

Power HMC V8.8.6.0
Power HMC V8.8.7.0
Power HMC V9.1.910.0

Remediation/Fixes

  The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/

Product
VRMF
APAR
Remediation/Fix
Power HMC
V8.8.6.0 SP3
MB04172
Power HMC
V8.8.7.0 SP2 ppc
MB04174
Power HMC
V8.8.7.0 SP2 x86
MB04173
Power HMC
V9.1.920.0 ppc
 MB04176 MH01760
Power HMC V9.1.920.0 x86 MB04175 MH01759

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

Initial Version: 19 July 2018

*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.

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Document Information

Modified date:
22 September 2021

UID

ibm10717893

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