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Security Bulletin: IBM Rational ClearCase update for security vulnerabilities in OpenSSL component

Security Bulletin


IBM Rational ClearCase uses the OpenSSL component for establishing SSL connections. ClearCase now ships an updated version of OpenSSL on Unix and Linux platforms, and uses a new component called IBM GSKit on Windows which also mitigates against the OpenSSL vulnerabilities.

Vulnerability Details

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Description: OpenSSL versions prior to 1.0.0 do not follow best security practices and need to be upgraded. For a complete list of OpenSSL Vulnerabilities by version, please refer to:

ClearCase and have been upgraded to ship with version 1.0.1C OpenSSL.

Prior versions of ClearCase shipped with OpenSSL version 0.9.7e.

On Windows platforms, ClearCase now uses the IBM GSKit component to perform SSL. IBM GSKit includes the OpenSSL security corrections.

The OpenSSL component is used by ClearCase for making SSL connections for OSLC-enabled UCM to ClearQuest. The OpenSSL component is also invoked if user supplied Perl code uses ratlperl to make SSL connections.

These vulnerabilities are not relevant for the traditional ClearCase to ClearQuest UCM integration.

Affected Products and Versions

Any supported platform.


Upgrade to ClearCase version

Workarounds and Mitigations

Workaround: None

Mitigation: Keep the SSL connections used for OSLC-enabled UCM between ClearCase and ClearQuest behind firewalls, and on your internal network.

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Change History

* 12 December 2012: Original copy 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.

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Document Information

Modified date:
16 June 2018