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Security Bulletin: WebSphere MQ is vulnerable to disclosing side channel information via discrepencies between valid and invalid PKCS#1 padding. ROBOT. (CVE-2018-1388)

Security Bulletin


Summary

WebSphere MQ is affected by the ROBOT vulnerability where it may disclose side channel information via discrepencies between valid and invalid PKCS#1 padding.

Vulnerability Details

CVEID: CVE-2018-1388
DESCRIPTION:
IBM MQ is vulnerable to TLS implementations may disclose side channel information via discrepencies between valid and invalid PKCS#1 padding.
CVSS Base Score: 9.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/138212 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:N)

Affected Products and Versions

WebSphere MQ v7.0.1

  • Maintenance levels 7.0.1.0 - 7.0.1.14

Remediation/Fixes

WebSphere MQ v7.0.1

  • Contact WebSphere MQ support requesting a fix for APAR IJ03658
  • Workarounds and Mitigations

    Get Notified about Future Security Bulletins

    References

    Complete CVSS v3 Guide
    On-line Calculator v3

    Related information

    IBM Secure Engineering Web Portal
    IBM Product Security Incident Response Blog

    Change History

    01 Feb 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

    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.

    Document information

    More support for: WebSphere MQ
    SSL

    Software version: 7.0.1, 7.0.1.1, 7.0.1.2, 7.0.1.3, 7.0.1.4, 7.0.1.5, 7.0.1.6, 7.0.1.7, 7.0.1.8, 7.0.1.9, 7.0.1.10, 7.0.1.11, 7.0.1.12, 7.0.1.13, 7.0.1.14

    Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows

    Software edition: All Editions

    Reference #: 2013022

    Modified date: 01 February 2018


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