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Security Bulletin: Vulnerabilities in ClearQuest GSKit Component (CVE-2013-6747)

Security Bulletin


Summary

IBM Rational ClearQuest is vulnerable to a denial of service caused by an error in the Global Security Toolkit (GSKit) component. By initiating an SSL/TLS connection using a malformed certificate chain, a server process could hang or crash.

Vulnerability Details

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CVE ID: CVE-2013-6747

Description:

The IBM GSKit is used if ClearQuest is using LDAP authentication with SSL enabled. The GSKit implementation is vulnerable to an attack from a malformed certificate chain. Were an attacker to force use of such a certificate when initiating an SSL/TLS connection, they could cause the authentication process to hang or crash.

CVSS Base Score: 7.1


CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/89863 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 ClearQuest versions 7.1.1 through 7.1.1.9, 7.1.2 through 7.1.2.12, 8.0.0 through 8.0.0.9, and 8.0.1 through 8.0.1.2

Remediation/Fixes

The solution is to upgrade to a version of ClearQuest that has a newer GSKit component that corrects these vulnerabilities. Please see below for information on the fixes available.

Client fixes (for Windows ClearQuest clients meeting the description above of vulnerable configurations)

Systems running 8.0.1 through 8.0.1.2:


Systems running 8.0.0 through 8.0.0.9:

Systems running 7.1.1 through 7.1.1.9, 7.1.2 through 7.1.2.12:

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

None

Change History

* March 28, 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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Document Information

Modified date:
16 June 2018

UID

swg21666421

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