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HistoryJun 17, 2018 - 2:57 p.m.

Security Bulletin: Vulnerabilities in IBM Tivoli Directory Server affect Tivoli Netcool Service Quality Manager (CVE-2015-0138, CVE-2015-0159)

2018-06-1714:57:45
www.ibm.com
6

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

Summary

GSKit is an IBM component that is used by IBM Tivoli Directory Server. The GSKit that is shipped with IBM Tivoli Directory Server contains multiple security vulnerabilities including the “FREAK: Factoring Attack on RSA-EXPORT keys" TLS/SSL client and server vulnerability. These vulnerabilities affect Tivoli Netcool Service Quality Manager.

Vulnerability Details

CVEID: CVE-2015-0138 **
DESCRIPTION:** A vulnerability in various IBM SSL/TLS implementations could allow a remote attacker to downgrade the security of certain SSL/TLS connections. An IBM SSL/TLS client implementation could accept the use of an RSA temporary key in a non-export RSA key exchange ciphersuite. This could allow a remote attacker using man-in-the-middle techniques to facilitate brute-force decryption of TLS/SSL traffic between vulnerable clients and servers.
This vulnerability is also known as the FREAK attack.

CVSS Base Score: 4.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/100691&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

**
CVEID:CVE-2015-0159 **
DESCRIPTION:
An unspecified error in GSKit usage of OpenSSL crypto function related to the production of incorrect results on some platforms by Bignum squaring (BN_sqr) has an unknown attack vector and impact in some ECC operations.

CVSS Base Score: 2.6
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/100835&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:N/I:P/A:N)

Affected Products and Versions

These vulnerabilities affect Tivoli Netcool Service Quality Manager 4.1.4

Remediation/Fixes

IBM has provided patches for all affected versions.
The fix for IBM Tivoli Directory Server could be downloaded from the IBM Fix Central site:
<http://www-01.ibm.com/support/docview.wss?uid=swg21698703&gt;

The restart of the TNSQM instance is required after an appropriate patch is applied.

Workarounds and Mitigations

None

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

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