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Security Bulletin: Vulnerability in GSKit affects IBM Security Network Protection (CVE-2015-0138)

Created by Rick Wu on
Published URL:
https://www.ibm.com/support/pages/node/260243
260243

Security Bulletin


Summary

GSKit is an IBM component that is used by IBM Security Network Protection. The GSKit that is shipped with IBM Security Network Protection contains multiple security vulnerabilities including the FREAK: Factoring Attack on RSA-EXPORT keys" TLS/SSL client and server vulnerability. IBM Security Network Protection has addressed the applicable CVEs.

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 http://exchange.xforce.ibmcloud.com/#/vulnerabilities/100691 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Affected Products and Versions

  • IBM Security Network Protection 5.2
  • IBM Security Network Protection 5.3

Remediation/Fixes

Product

VersionRemediation
IBM Security Network Protection5.25.2.0.0-ISS-XGS-All-Models-Hotfix-FP0008
IBM Security Network Protection5.3Firmware Update 5.3.0.5 https://ibmss.flexnetoperations.com/

You should verify applying this fix does not cause any compatibility issues.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

April 1, 2015: original version 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

swg21701264