IBM Support

Security Bulletin: Vulnerability in IBM Java Runtime affects IBM Installation Manager and IBM Packaging Utility (CVE-2015-7575)

Created by Stuart Frische on
Published URL:
https://www.ibm.com/support/pages/node/710863
710863

Security Bulletin


Summary

There is a vulnerability in IBM® Runtime Environment Java™ Technology Edition, Versions 6 and 7 that is used by IBM Installation Manager and IBM Packaging Utility. This vulnerability, commonly referred to as “SLOTH”, was disclosed as part of the IBM Java SDK updates in January 2016.

Vulnerability Details

CVEID: CVE-2015-7575
DESCRIPTION: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials. This vulnerability is commonly referred to as “SLOTH”.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/UI:U/C:H/I:L/A:N)

Affected Products and Versions

IBM Installation Manager and IBM Packaging Utility versions 1.8.4 and earlier.

Remediation/Fixes

Product

VRMFAPARRemediation/First Fix
IBM Installation Manager and IBM Packaging Utility1.7.4.x None1.7.4.5 IBM Installation Manager Remediation
1.7.4.5 IBM Packaging Utility Remediation

Please note that the 1.7.4.5 fix is intended for upgrade of 1.7.4.4 and earlier versions which continue support on platforms that are NOT supported by 1.8 or later versions.
Users running 1.7.4.4 or earlier version on platforms that ARE supported by 1.8.x version, should upgrade to 1.8.4.1.

IBM Installation Manager and IBM Packaging Utility1.8.xNone1.8.4.1 IBM Installation Manager Remediation
1.8.4.1 IBM Packaging Utility Remediation

Workarounds and Mitigations

Upgrade products to the remediated versions per the table above.

Please note that this update will disable the usage of X509 Certificates signed with MD5withRSA and connections to repositories that worked prior to the upgrade may no longer work. This failure case will include a CRIMC1084E error with a note that "Certificate does not conform to algorithm constraints".

Here are symptoms of two scenarios:

1) If you are adding a new repository, the IBM installation Manager fails with an Add Repository Error and includes a CRIMC1084E error:

      Add Repository Error

      "Failed to connect repository 'https://<URL>' either because the repository does not exist, the repository is closed or the repository server can not be reached."

    And the "Details" section of the error message contains the following Java exception:
      "javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: Certificates does not conform to algorithm constraints"
2) Trying to install or update from a previously configured repository, the IBM installation Manager shows a Warning message:
      "The following repositories are not connected: https://<URL>"
    And the "Details" section of the warning message contains the following Java exception:
      "javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: Certificates does not conform to algorithm constraints"

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support alerts like this.

Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off
IBM Java SDK Security Bulletin

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France

Change History

17 February 2016 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.

[{"Product":{"code":"SSDV2W","label":"IBM Installation Manager"},"Business Unit":{"code":null,"label":null},"Component":"Install","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF022","label":"OS X"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"1.0;1.0.0.1;1.0.0.2;1.0.0.3;1.0.0.4;1.0.0.5;1.1;1.1.0.1;1.1.0.2;1.1.1;1.1.2;1.2;1.2.1;1.3;1.3.1;1.3.2;1.3.3;1.3.4;1.3.4.1;1.4;1.4.1;1.4.2;1.4.3;1.4.4;1.5;1.5.0.1;1.5.1;1.5.2;1.5.3;1.6;1.6.1;1.6.2;1.6.3;1.6.3.1;1.7;1.7.1;1.7.2;1.7.3;1.7.4;1.7.4.1;1.7.4.2;1.7.4.3;1.7.4.4;1.8;1.8.1;1.8.2;1.8.2.1;1.8.3;1.8.4","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
23 June 2018

UID

swg21977047

Page Feedback