A security vulnerability has been identified in all levels of IBM Spectrum Scale that could allow a local attacker to cause a denial of service. A fix for this vulnerability is available.
DESCRIPTION: The Spectrum Scale file system component is affected by a denial of service security vulnerability. An attacker can force the Spectrum Scale mmfsd/mmsdrserv daemons to unexpectedly exit, impacting the functionality of the Spectrum Scale cluster and the availability of file systems managed by Spectrum Scale.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179987 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
IBM Spectrum Scale V126.96.36.199 through V188.8.131.52
IBM Spectrum Scale V184.108.40.206 through V220.127.116.11
For IBM Spectrum Scale V18.104.22.168 through 22.214.171.124, apply V126.96.36.199 available from FixCentral at:
For IBM Spectrum Scale V188.8.131.52 thru V184.108.40.206, apply V220.127.116.11 available from FixCentral at:
If you cannot apply the latest level of service, contact IBM Service for an efix:
- For IBM Spectrum Scale V18.104.22.168 thru V22.214.171.124, reference APAR IJ23789
- For IBM Spectrum Scale V126.96.36.199 thru V188.8.131.52, reference APAR IJ23785
Workarounds and Mitigations
Get Notified about Future Security Bulletins
18 May 2020: Final 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.
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.
18 May 2020