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Security Bulletin: Vulnerabilities in libssh (CVE-2023-6004, CVE-2023-6918) affect Power HMC.

Security Bulletin


Summary

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

Vulnerability Details

CVEID:   CVE-2023-6004
DESCRIPTION:   libssh could allow a local authenticated attacker to execute arbitrary commands on the system, caused by a flaw in the ProxyCommand handling. By sending a specially crafted request using hostname in expanded proxycommand, an attacker could exploit this vulnerability to execute arbitrary commands on the system.
CWE:   CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVSS Source:   IBM X-Force
CVSS Base score:   4.8
CVSS Vector:   (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L)

CVEID:   CVE-2023-6918
DESCRIPTION:   libssh is vulnerable to a denial of service, caused by an unchecked return value flaw for the abstract layer for message digest (MD) operations. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CWE:   CWE-252: Unchecked Return Value
CVSS Source:   IBM X-Force
CVSS Base score:   3.7
CVSS Vector:   (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Affected Product(s)Version(s)
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
V10.2.1040.0 SP3 x86

MB04472

MF71707

Power HMC
V10.2.1040.0 SP3 ppc

MB04473

MF71708

Power HMC
V10.3.1060.0 SP1 x86

MB04474

MF71709

Power HMC
V10.3.1060.0 SP1 ppc

MB04475

MF71710

 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

14 Dec 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:
14 December 2024

UID

ibm17178945