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Security Bulletin: IBM Cloud Manager is affected by the vulnerabilities known as SpectreNG (CVE-2018-3639)

Security Bulletin


Summary

A third party CPU hardware utilizing speculative execution may be vulnerable to cache timing side-channel analysis known as Variant 4 or SpectreNG. These vulnerabilities have been referred to as part of "SpectreNG" in the media, given their similarity to previously disclosed vulnerabilities. An attacker with local user access may be able to read arbitrary privileged data or system register values by utilizing cache timing side-channel analysis.

Vulnerability Details

CVEID: CVE-2018-3639
DESCRIPTION: Multiple Intel CPU's could allow a local attacker to obtain sensitive information, caused by utilizing sequences of speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known. By conducting targeted cache side-channel attacks, an attacker could exploit this vulnerability to bypass security restrictions and gain read access to privileged memory. Note: This vulnerability is the Speculative Store Bypass (SSB), also known as Variant 4 or "SpectreNG".
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/143569 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N)

Affected Products and Versions

Affected Product Name

Affected Versions
IBM Cloud Manager with OpenStackV4.3, V4.2, V4.1

Remediation/Fixes

Product

VRMF
Remediation/First Fix
IBM Cloud Manager with OpenStackV4.3, V4.2, V4.1
  1. Get fix for affected packages from RedHat Enterprise Linux. Follow the advisory at https://access.redhat.com/security/vulnerabilities/ssbd.
  2. Install the fixed packages on deployment server, OpenStack controllers, and compute nodes.

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off
For more information and technical details, see Intel's security advisory INTEL-SA-00115 or ARM's whitepaper.

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

05 June 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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Document Information

Modified date:
07 August 2018

UID

isg3T1027795

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