A vulnerability in the OpenSSH component affects the Command Line Interface of IBM SAN Volume Controller, IBM Storwize and IBM FlashSystem products.
DESCRIPTION: OpenSSH is vulnerable to a denial of service, caused by a NULL pointer dereference. By sending a specially crafted SSH2_MSG_NEWKEYS message, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117448 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:L)
Affected Products and Versions
IBM SAN Volume Controller
IBM Storwize V7000
IBM Storwize V5000
IBM Storwize V3700
IBM Storwize V3500
IBM FlashSystem V9000
All products are affected when running supported version 7.5.
IBM recommends that you fix this vulnerability by upgrading affected version of IBM SAN Volume Controller, IBM Storwize V7000, V5000, V3700 and V3500, and IBM FlashSystem V9000 to the following code levels or higher:
For unsupported versions of the above products, IBM recommends upgrading to a fixed, supported version of code.
Workarounds and Mitigations
Although IBM recommends that you install a level of code with a fix for this vulnerability, you can mitigate, although not eliminate, your risk until you have done so by ensuring that all users who have access to the system are authenticated by another security system such as a firewall.
Get Notified about Future Security Bulletins
20 July 2018: 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.
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.
01 August 2018