Security Bulletin: Multiple vulnerabilities in IPv6 and MQ affect IBM SAN Volume Controller, IBM Storwize and IBM FlashSystem products

Security Bulletin

Summary

Vulnerabilities in the IPv6 and MQ components affect IBM SAN Volume Controller, IBM Storwize and IBM FlashSystem products. Applicable CVEs are CVE-2016-10142 and CVE-2017-11176.

Vulnerability Details

CVEID: CVE-2016-10142
DESCRIPTION: The IETF IPv6 protocol is vulnerable to a denial of service. By leveraging the generation of IPv6 atomic fragments and using the fragments in an arbitrary IPv6 flow, a remote attacker could exploit this vulnerability to perform any type of a fragmentation-based attack against legacy IPv6 nodes and trigger a kernel panic.
CVSS Base Score: 8.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/124080 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)

CVEID: CVE-2017-11176
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a sock pointer not set to NULL in the mq_notify function. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/129055 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

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.

Remediation/Fixes

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:

7.7.1.9
7.8.1.6
8.1.1.2
8.1.2.1
8.1.3.0

Latest IBM SAN Volume Controller Code
Latest IBM Storwize V7000 Code
Latest IBM Storwize V5000 Code
Latest IBM Storwize V3700 Code
Latest IBM Storwize V3500 Code
Latest IBM FlashSystem V9000 Code

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.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

30 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.

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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Tips

Security Bulletin: Multiple vulnerabilities in IPv6 and MQ affect IBM SAN Volume Controller, IBM Storwize and IBM FlashSystem products