Security Bulletin: Vulnerabilities in RequisitePro GSKit Component (CVE-2014-0963)

Security Bulletin

Summary

A vulnerability in IBM Rational RequisitePro in relation to TLS Record Processing has been discovered related to TLS 1.0 and later which can result in high CPU utilization that requires a system reboot to resolve.

Vulnerability Details

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CVE ID: CVE-2014-0963

Description: A vulnerability in relation to TLS Record Processing has been discovered related to TLS 1.0 and later which can result in high CPU utilization.

RequisitePro uses GSKit when supporting SSL (https) connections.

Note: this vulnerability affects RequisitePro only if your IBM HTTP server is configured to enable mod_reqtimeout. This is not the default configuration. If you do not use mod_reqtimeout, you are not vulnerable.

CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/92844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)

Affected Products and Versions

IBM Rational RequisitePro versions 7.1, 7.1.0.1 through 7.1.0.2, 7.1.1 through 7.1.1.9, 7.1.2 through 7.1.2.13.01, 7.1.3 through 7.1.3.10.01, and 7.1.4 through 7.1.4.3.01

Remediation/Fixes

Install fixes to your IBM HTTP Server, if you use SSL.

Review security bulletin 1672843: IBM HTTP Server CPU utilization (CVE-2014-0963) for additional vulnerability details and fixes.

Affected Versions	Applying the fix
7.1, 7.1.0.x, 7.1.1.x and 7.1.2.x	Document 1390803 explains how to update IBM HTTP Server for IBM Rational ClearCase WAN servers at release 7.1.x; the same process applies for RequisitePro. Consult those instructions when applying the IHS interim fix or fix pack containing the fix, as listed in the security bulletin referenced above.
7.1.3.x and 7.1.4.x	Upgrade IBM HTTP Server to a version including the fix, or install the IHS interim fix. Consult the security bulletin referenced above for the fixes relevant for your version of IHS.

Workarounds and Mitigations

Monitor CPU utilization of your RequisitePro server instances. If utilization becomes abnormally high, stop and restart the affected instance.

Follow the guidance in security bulletin 1672843 to change your configuration of IHS to avoid the problem.

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References

Complete CVSS v2 Guide
On-line Calculator v2

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Acknowledgement

None

Change History

* 19 May 2014: 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.

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: Vulnerabilities in RequisitePro GSKit Component (CVE-2014-0963)