24 February 2016
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0468 Security Bulletin: Multiple vulnerabilities in IBM Java Runtime Environments Java (TM) Technology Edition, Versions 6, 7, 8 affect IBM Trans= formation Extender Hypervisor Edition (CVE-2016-0466, CVE-2015-7575) 24 February 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Transformation Extender Publisher: IBM Operating System: Linux variants Impact/Access: Access Privileged Data -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2016-0466 CVE-2015-7575 Reference: ASB-2016.0004 ESB-2016.0465 ESB-2016.0049 ESB-2016.0047 ESB-2016.0046 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21976970 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Multiple vulnerabilities in IBM Runtime Environments Java Technology Edition, Versions 6, 7, 8 affect IBM Transformation Extender Hypervisor Edition (CVE-2016-0466, CVE-2015-7575) Security Bulletin Document information More support for: Transformation Extender Hypervisor Software version: 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11 Operating system(s): Linux Reference #: 1976970 Modified date: 2016-02-23 Summary There are multiple vulnerabilities in IBM Runtime Environments Java Technology Edition, Versions 6, 7, 8 that are used by IBM Transformation Extender Hypervisor Edition. These issues were disclosed as part of the IBM Java SDK updates in January 2016 and include the vulnerability commonly referred to as SLOTH. Vulnerability Details CVEID: CVE-2016-0466 DESCRIPTION: An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the JAXP component could allow a remote attacker to cause a denial of service resulting in a partial availability impact using unknown attack vectors. CVSS Base Score: 5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109948 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) 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/S:U/C:H/I:L/A:N) Affected Products and Versions Transformation Extender Hypervisor Edition Affected versions: 18.104.22.168 Affected versions: 22.214.171.124 - 126.96.36.199 188.8.131.52 - 184.108.40.206 Remediation/Fixes Transformation Extender Hypervisor Edition 220.127.116.11 users should download and install the interim fix for APAR PI57205 from IBM Fix Central here. Users on prior versions of WebSphere Transformation Extender with Launcher Hypervisor Edition should download and install the interim fix for APAR PI57205 from IBM Fix Central here. Workarounds and Mitigations To address CVE-2015-7575, users that are on Java 7 or Java 8 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 - for example jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024,MD5 Add MD5withRSA to the jdk.tls.disabledAlgorithms property - for example jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768,MD5withRSA Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. 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 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 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. 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