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Security Bulletin: GSKit SSL negotiation vulnerability in Tivoli Directory Server (CVE-2013-6329)

Flashes (Alerts)


Abstract

A vulnerability has been identified in the GSKit component utilized by Tivoli Directory Server (TDS). A specially crafted SSL message can cause the TDS server component using GSKit to crash. Remediation for the issue consists of upgrading affected GSKit following the instructions at the end of this bulletin.

Content

VULNERABILITY DETAILS

CVE ID:
CVE-2013-6329


DESCRIPTION:
TDS uses GSKit for SSL connections. The GSKit implementation is vulnerable to an attack from a specially crafted SSL message. Were an attacker to construct and send such an SSL request, they could cause the TDS server process to crash.
The attack does not require local network access or authentication but specialized knowledge and techniques are required. An exploit would not impact the confidentiality of information or the integrity of data, however accessibility of the system can be compromised

CVSS:
CVSS Base Score: 7.8
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/88939
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C)


AFFECTED PLATFORMS
All supported Tivoli Directory Server versions are affected.


REMEDIATION:

· If using GSKit v7, upgrade to GSKit version 7.0.4.47 or higher as soon as possible.
· If using GSKit v8, upgrade to GSKit version 8.0.50.13 or higher as soon as possible.


Vendor Fix(es):

Tivoli Directory Server VersionGSKit VersionInterim Fix
IBM Tivoli Directory Server 6.1GSKit v76.1.0.59
IBM Tivoli Directory Server 6.2.0GSKit v76.2.0.34
IBM Tivoli Directory Server 6.3.0GSKit v86.3.0.26
IBM Security Directory Server 6.3.1GSKit v86.3.1.1


WORKAROUNDS:
No workaround


RELATED INFORMATION:

· CVE-2013-6329
· https://exchange.xforce.ibmcloud.com/vulnerabilities/88939
· Complete CVSS Guide
· X-Force Vulnerability Database
· IBM Secure Engineering Web Portal
· IBM Product Security Incident Response Blog


CHANGE HISTORY:

None

*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 Flash.


Note: 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:
25 September 2022

UID

swg21662362