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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0469
      Security Bulletin: Multiple vulnerabilities in IBM Java Runtime
  Environments Java (TM) Technology Edition, Versions 6, 7, 8 affect IBM
            Transformation Extender Hypervisor Edition for AIX
                      (CVE-2016-0466, CVE-2015-7575)
                             24 February 2016

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Transformation Extender
Publisher:         IBM
Operating System:  AIX
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-2016.0466
                   ESB-2016.0465
                   ESB-2016.0049
                   ESB-2016.0047
                   ESB-2016.0046

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21977061

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Security Bulletin: Multiple vulnerabilities in IBM Runtime Environments Java
Technology Edition, Versions 6, 7, 8 affect IBM Transformation Extender
Hypervisor Edition for AIX (CVE-2016-0466, CVE-2015-7575)

Security Bulletin

Document information

More support for:

Transformation Extender

Hypervisor

Software version:

8.4.1.0, 8.4.1.1, 8.4.1.2, 8.4.1.3, 9.0.0.0

Operating system(s):

AIX

Reference #:

1977061

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 for AIX. 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 for AIX

Affected versions:

9.0.0.0



8.4.1.0 - 8.4.1.3

Remediation/Fixes

Transformation Extender Hypervisor Edition for AIX 9.0.0.0 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 for AIX 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.

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