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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
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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
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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 (CVE-2016-0466, CVE-2015-7575)
Security Bulletin
Document information
More support for:
Transformation Extender
Hypervisor
Software version:
8.4.0.0, 8.4.0.1, 8.4.0.2, 8.4.0.3, 8.4.0.4, 8.4.0.5, 8.4.1.0, 8.4.1.1,
8.4.1.2, 8.4.1.3, 9.0.0.0
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:
9.0.0.0
Affected versions:
8.4.1.0 - 8.4.1.3
8.4.0.0 - 8.4.0.5
Remediation/Fixes
Transformation Extender Hypervisor Edition 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 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
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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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