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Security Bulletin: IBM Flex System Chassis Management Module (CMM) is affected by vulnerabilities in OpenSSH (CVE-2018-15473 CVE-2018-15919)

Created by Barb Foss on
Published URL:
https://www.ibm.com/support/pages/node/870680
870680

Security Bulletin


Summary

IBM Flex System Chassis Management Module (CMM) has addressed the following vulnerabilities in OpenSSH.

Vulnerability Details

CVEID: CVE-2018-15473
DESCRIPTION: OpenSSH could allow a remote attacker to obtain sensitive information, caused by different responses to valid and invalid authentication attempts. By sending a specially crafted request, an attacker could exploit this vulnerability to enumerate valid usernames.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148397 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2018-15919
DESCRIPTION: OpenSSH could allow a remote attacker to obtain sensitive information, caused by an error in auth-gss2.c when GSS2 is in use. By sending a specially crafted request, an attacker could exploit this vulnerability to enumerate valid usernames. Note: The discoverer has stated that the OpenSSH developers do not want to treat such a username enumeration as a vulnerability.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148952 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Product

Affected Version

IBM Flex System Chassis Management Module (CMM)

2PET

Remediation/Fixes

Firmware fix versions are available on Fix Central:  http://www.ibm.com/support/fixcentral/

Product

Fix Version

IBM Flex System Chassis Management Module (CMM)
(ibm_fw_cmm_2pet18a-2.5.14a_anyos_noarch)

2pet18a-2.5.14a

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

Lenovo Product Security Advisories

Change History

20 March 2019: Original version published

*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:
20 March 2019

UID

ibm10870680

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