IBM Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM WebSphere MQ (CVE-2016-0475, CVE-2015-7575, CVE-2016-0448) - United States  SECURITY BULLETIN

SUMMARY
 There are multiple vulnerabilities in IBM® Runtime Environment Java™ Technology Edition that is used by IBM WebSphere MQ. 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-2016-0448 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0448]
DESCRIPTION: An unspecified vulnerability in Oracle Java SE and Java SE Embedded related to the JMX component could allow a remote attacker to obtain sensitive information resulting in a partial confidentiality impact using unknown attack vectors.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109949 [https://exchange.xforce.ibmcloud.com/vulnerabilities/109949] for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVEID: CVE-2015-7575 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=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.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 [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)

CVEID: CVE-2016-0475 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0475]
DESCRIPTION: An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the Libraries component has partial confidentiality impact, partial integrity impact, and no availability impact.
CVSS Base Score: 5.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109946 [https://exchange.xforce.ibmcloud.com/vulnerabilities/109946] for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)

AFFECTED PRODUCTS AND VERSIONS
IBM JRE 7, Java Technology Edition, Version 7 provided by IBM WebSphere MQ 8.0.0.4 and earlier on all platforms (except IBM i and z/OS) 

IBM JRE 6, Java Technology Edition, Version 6 provided by IBM WebSphere MQ 7.5.0.5, IBM WebSphere MQ 7.1.0.7 and earlier on all platforms (except IBM i and z/OS)

REMEDIATION/FIXES
IBM WebSphere MQ 8.0 

HP-UX 

Apply fix pack 8.0.0.5 when available, in the interim apply ifix IV81649 [http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=8.0&platform=HPUX+64-bit,+IA64&function=aparId&apars=IV81649] 

AIX, Linux, Solaris & Windows 

Apply fix pack 8.0.0.5 when available, in the interim apply ifix IT13492 [http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=8.0&platform=All&function=aparId&apars=IT13492] 

 

IBM WebSphere MQ 7.5 

HP-UX 

Apply fix pack 7.5.0.7 when available, in the interim apply ifix IV81649 [http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.5&platform=HPUX+64-bit,+IA64&function=aparId&apars=IV81649] 

AIX, Linux, Solaris & Windows 

Apply fix pack 7.5.0.6 [http://www-01.ibm.com/support/docview.wss?uid=swg21975660] 

 

IBM WebSphere MQ 7.1 

HP-UX 

Apply fix pack 7.1.0.8 when available, in the interim apply ifix IV81649 [http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.5&platform=HPUX+64-bit,+IA64&function=aparId&apars=IV81649] 

AIX, Linux, Solaris & Windows 

Apply fix pack 7.1.0.8 when available, in the interim apply ifix IT13492 [http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm%7EWebSphere&product=ibm/WebSphere/WebSphere+MQ&release=7.1&platform=All&function=all&source=fc]

WORKAROUNDS AND MITIGATIONS
For CVE-2015-7575: 

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 - 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 

Java 6 requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JRE is the only solution.

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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 [http://www.ibm.com/systems/z/solutions/security_subintegrity.html]. 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 [http://www.first.org/cvss/v2/guide] 
On-line Calculator v2 [http://nvd.nist.gov/CVSS-v2-Calculator] 
Complete CVSS v3 Guide [http://www.first.org/cvss/user-guide] 
On-line Calculator v3 [http://www.first.org/cvss/calculator/3.0] RELATED INFORMATION
IBM Secure Engineering Web Portal [http://www.ibm.com/security/secure-engineering/bulletins.html] 
IBM Product Security Incident Response Blog [http://www.ibm.com/blogs/PSIRT] IBM Java SDK Security Bulletin [http://www-01.ibm.com/support/docview.wss?uid=swg21974193] ACKNOWLEDGEMENT
CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France 

CHANGE HISTORY
 22 April 2016: Original version published
29 April 2016: Altered CVE-2015-7575 scoring
2 June 2016: Further correction to CVE-2015-7575 scoring 

*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.

RELATED INFORMATION
 A Japanese translation is available [http://www.ibm.com/support/docview.wss?uid=swg21982284]

Question: Help with Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM WebSphere MQ (CVE-2016-0475) I need to understand details regarding Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect IBM WebSphere MQ (CVE-2016-0475). Where can I find this information? 

Answer: CVEID: CVE-2016-0475 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0475]
DESCRIPTION: An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the Libraries component has partial confidentiality impact, partial integrity impact, and no availability impact.
CVSS Base Score: 5.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109946 [https://exchange.xforce.ibmcloud.com/vulnerabilities/109946] for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)