IBM Support

Security Bulletin: Vulnerability in libtirpc affects Power Hardware Management Console (CVE-2017-8779)

Security Bulletin


Summary

libtirpc is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2017-8779
DESCRIPTION: rpcbind, LIBTIRPC, and NTIRPC are vulnerable to a denial of service, caused by improper validation of XDR strings in memory allocation. By sending a specially-crafted UDP packet, a remote attacker could exploit this vulnerability to cause memory consumption.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125753 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)

Affected Products and Versions

Power HMC V8.4.0.0
Power HMC V8.5.0.0
Power HMC V8.6.0.0

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
V8.8.4.0 SP2
MB04099
Power HMC
V8.8.5.0 SP2
MB04100
Power HMC
V8.8.6.0 SP1
MB04103
Power HMC
V8.8.6.0 SP2
MB04101

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

28 Aug 2017 : Initial version

*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.

[{"Product":{"code":"SSB6AA","label":"Power System Hardware Management Console Physical Appliance"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"HMC","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Version Independent","Edition":"Enterprise","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Product":{"code":"SSB6AA","label":"Power System Hardware Management Console Physical Appliance"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
22 September 2021

UID

nas8N1022176

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