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Security Bulletin: Vulnerability in nghttp2 library (CVE-2023-44487) affects Power HMC

Security Bulletin


Summary

The nghttp2 library is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVE.

Vulnerability Details

CVEID:   CVE-2023-44487
DESCRIPTION:   Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 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 V10.1.1010.0V10.1.1010.0
HMC V10.2.1030.0V10.2.1030.0
HMC V10.3.1050.0V10.3.1050.0

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
V10.1.1020.0 SP3 x86
MB04446
MF71681
Power HMC
V10.1.1020.0 SP3 ppc
MB04447
MF71682
Power HMC
V10.2.1040.0 SP2 x86
MB04448
MF71683
Power HMC
V10.2.1040.0 SP2 ppc
MB04449
MF71684
Power HMC
V10.3.1050.0 SP1 x86
MB04450
MF71685
Power HMC
V10.3.1050.0 SP1 ppc
MB04451
MF71686
 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

16 Apr 2024: 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
16 April 2024

UID

ibm17148393