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AUSCERT External Security Bulletin Redistribution
ESB-2016.0465
Security Bulletin: Multiple vulnerabilities in IBM Java Runtime af= fect
WebSphere Message Broker and IBM Integration Bus
24 February 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Integration Bus
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote with User Interaction
Modify Arbitrary Files -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-0494 CVE-2016-0483 CVE-2016-0475
CVE-2016-0466 CVE-2015-8472 CVE-2015-7575
Reference: ASB-2016.0004
ESB-2016.0455
ESB-2016.0454
ESB-2016.0453
ESB-2016.0047
ESB-2016.0046
ESB-2015.3085
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21976779
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Security Bulletin: Multiple vulnerabilities in IBM Java Runtime affect
WebSphere Message Broker and IBM Integration Bus
Security Bulletin
Document information
More support for:
IBM Integration Bus
Software version:
9.0, 10.0
Operating system(s):
AIX, HP-UX, Linux, Solaris, Windows
Reference #:
1976779
Modified date:
2016-02-23
Summary
Multiple security vulnerabilities exist in the IBM Runtime Environment Java
Technology Edition 6.0.16.16 (and earlier) used by WebSphere Message Broker
and the IBM Runtime Environment Java Technology Edition 7.0.9.20 (and
earlier) or 7.1.3.20 (and earlier) used by IBM Integration Bus. These issues
were disclosed as part of the IBM Java SDK updates in January 2016 and
includes the vulnerability commonly referred to as SLOTH.
Vulnerability Details
CVEID:
CVE-2016-0494
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE and Java SE Embedded related
to the 2D component has complete confidentiality impact, complete integrity
impact, and complete availability impact.
CVSS Base Score: 10
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/109944
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVEID:
CVE-2016-0483
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit
related to the AWT component has complete confidentiality impact, complete
integrity impact, and complete availability impact.
CVSS Base Score: 10
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/109945
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVEID:
CVE-2015-8472
DESCRIPTION:
libpng is vulnerable to a buffer overflow, caused by improper bounds checking
by the png_get_PLTE() and png_set_PLTE() functions. By persuading a victim to
open a specially crafted PNG image, a remote attacker could overflow a buffer
and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 6.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/109392
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
CVEID:
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
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)
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
IBM Integration Bus V10, V9
WebSphere Message Broker V8
IBM Integration Toolkit V9
WebSphere Message Broker Toolkit V8
Remediation/Fixes
Product VRMF APAR Remediation/Fix
IBM Integration Bus V10 IT13254 An interim fix is available from IBM Fix Central for all platforms except HP
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars= IT13254
The APAR is targeted to be available in fix pack 10.0.0.4
IBM Integration Bus V9 IT13254 An interim fix is available from IBM Fix Central for all platforms except HP
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars= IT13254 .
The APAR is targeted to be available in fix pack 9.0.0.6
WebSphere Message Broker (with APAR IT03599 applied*) V8 IT13254 An interim fix is available from IBM Fix Central for all platforms except HP
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=All&platform=All&function=aparId&apars= IT13254
* For V8.0 users IT13254 is applicable if:
- - you have APAR IT03599 applied
- - you are using a V8.0 fix pack containing IT03599
The APAR is targeted to be available in fix pack 8.0.0.7
WebSphere Message Broker (with APAR IT03599 not applied**) V8 IT13380 An interim fix is available from IBM Fix Central for all platforms
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=All&platform=All&function=aparId&apars=IT13380
** For V8.0 users IT13380 is applicable if :
- - you do not have APAR IT03599 applied
- - or you are using a V8.0 fix pack which does not contain IT03599
To address Java vulnerabilities in Toolkit
Product VRMF APAR Remediation/Fix
IBM Integration Toolkit V9.0 IT13254 An intim fix is available from IBM Fix Central
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars= IT13254
WebSphere Message Broker V8.0 IT13380 An interim fix is available from IBM Fix Central
Toolkit http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=All&platform=All&function=aparId&apars=IT13380
For unsupported versions of the product IBM recommends upgrading to a fixed,
supported version/release/platform of the product.
The planned maintenance release dates for WebSphere Message Broker and IBM
Integration Bus are available at :
http://www.ibm.com/support/docview.wss?uid=swg27006308
Note:
As a result of the SLOTH vulnerability the cryptographic hash algorithm
MD5
is no longer considered secure. Installing any of the above fixes or altering
the below configuration will disable all uses of the MD5 algorithm through
Java. Any certificate that is signed with MD5 and any cipher suite used
during TLS handshaking which tries to use MD5withRSA is not accepted.
A further IBM Integration Bus and WebSphere Message Broker bulletin which
covers SLOTH is available here:
http://www-01.ibm.com/support/docview.wss?uid=swg21975233
Workarounds and Mitigations
For CVE-2015-7575:
Users of Java 7 and later can address the issue by updating the java.security
file to disable the use of the MD5 algorithm.
1. Edit the java.security file in the jre/lib/security directory of the IBM
Integration Bus or WebSphere Message Broker installation.
For example:
v10:
c:\Program Files\IBM\IIB\10.0.0.2\common\jdk\jre\lib\security\java.security
/opt/ibm/iib/10.0.0.2/common/jdk/jre/lib/security/java.security (LinuxX64
only)
/opt/ibm/iib/10.0.0.2/common/jre/lib/security/java.security
v9 & v8 with APAR IT03599 applied :
c:\Program Files\IBM\MQSI\9.0.0.4\jre17\lib\security\java.security
/opt/ibm/mqsi/9.0.0.4/jre17/lib/security/java.security
c:\Program Files\IBM\MQSI\8.0.0.6\jre17\lib\security\java.security
/opt/ibm/mqsi/8.0.0.6/jre17/lib/security/java.security
2. Add MD5 to the jdk.certpath.disabledAlgorithms property
For example:
jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024,
MD5
3. Add MD5withRSA to the jdk.tls.disabledAlgorithms property
For example:
jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768,
MD5withRSA
For users of Java 6 the only solution is to upgrade the JRE by installing the
APAR IT13380.
Get Notified about Future Security Bulletins
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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
. 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
On-line Calculator v2
Complete CVSS v3 Guide
On-line Calculator v3
IBM Java SDK Security Bulletin
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris,
France
Change History
19 -Feb-2016 - Original version Published
23-Feb-2016 - Added V8 (Java 7) fix details
*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.
Segment Product Component Platform Version Edition
Business Integration WebSphere Message Broker 8
Product Alias/Synonym
WMB IIB
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