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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0482 Security Bulletin: Vulnerability in IBM Java SDK affects Rational Developer for System z (CVE-2015-7575) 24 February 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Rational Developer for System z Publisher: IBM Operating System: AIX Linux variants Windows z/OS Impact/Access: Access Privileged Data -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-7575 Reference: ASB-2016.0004 ESB-2016.0468 ESB-2016.0049 ESB-2016.0047 ESB-2016.0046 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21976476 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in IBM Java SDK affects Rational Developer for System z (CVE-2015-7575) Security Bulletin Document information More support for: Rational Developer for System z General Information Software version: 8.5, 8.5.0.1, 8.5.1, 8.5.1.1, 8.5.1.2, 8.5.1.3, 8.5.1.4, 8.5.1.5, 8.5.1.6, 9.0, 9.0.0.1, 9.0.1, 9.0.1.1, 9.0.1.2, 9.0.1.3, 9.0.1.4, 9.1, 9.1.1, 9.1.1.1, 9.1.1.2, 9.5, 9.5.1 Operating system(s): AIX, Linux, Windows, z/OS Software edition: All Editions Reference #: 1976476 Modified date: 2016-02-23 Summary There is a vulnerability in IBM SDK Java Technology Edition that is used by Rational Developer for System z. This vulnerability, commonly referred to as SLOTH, was disclosed as part of the IBM Java SDK updates in January 2016. Vulnerability Details Subscribe to My Notifications to be notified of important product support alerts like this. Follow this link for more information (requires login with your IBM ID) CVEID: CVE-2015-7575 DESCRIPTION: https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 Affected Products and Versions Principal Product and Version(s) Rational Developer for System z, versions 8.5.1.6 and earlier Rational Developer for System z, versions 9.0.1.4 and earlier Rational Developer for System z, versions 9.1.1.2 and earlier Rational Developer for z Systems, versions 9.5.1 and earlier Remediation/Fixes IBM has provided patches for all affected versions. Follow the installation instructions in the README files included with the patch. The fix can be obtained at the following locations: Rational Developer for System z Interim Fix 7 for 8.5.x Rational Developer for System z Interim Fix 7 for 9.0.x Rational Developer for System z Interim Fix 7 for 9.1.x Rational Developer for System z Interim Fix 2 for 9.5.x Workarounds and Mitigations Users of Java 7 and later can address the issue by updating the /jre/lib/security/java.security file as follows (both steps are required): Add MD5 to the jdk.certpath.disabledAlgorithms property - e.g. jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024,MD5 Add MD5withRSA to the jdk.tls.disabledAlgorithms property - e.g. jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768,MD5withRSA Java 6 requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JDK is the only solution. 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 v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History * 23 February 2016: 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 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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