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AUSCERT External Security Bulletin Redistribution
ESB-2017.3111
Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK
Affect IBM WebSphere Portal October 2017 CPU
6 December 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Portal
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-10388 CVE-2017-10356 CVE-2016-9843
CVE-2016-9842 CVE-2016-9841 CVE-2016-9840
Reference: ASB-2017.0173
ESB-2017.3032
ESB-2017.3017
ESB-2017.2915
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22011324
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Security Bulletin: Multiple Vulnerabilities in IBM Java SDK Affect IBM
WebSphere Portal October 2017 CPU
Summary
Document information
More support for: WebSphere Portal
Software version: 7.0, 8.0, 8.5, 9.0
Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Reference #: 2011324
Modified date: 05 December 2017
Summary
There are multiple vulnerabilities in IBM SDK Java Technology Edition that is
shipped with IBM WebSphere Application Server which is shipped with IBM
WebSphere Portal. These issues were disclosed as part of the IBM Java SDK
updates in October 2017.
Vulnerability Details
Multiple vulnerabilities in IBM Java SDK affect IBM WebSphere Portal.
Note: If you run your own Java code using the IBM Java Runtime delivered with
this product, you should evaluate your code to determine whether the complete
list of vulnerabilities are applicable to your code. For a complete list of
vulnerabilities please refer to the link for "IBM Java SDK Security Bulletin"
located in the References section for more information.
CVEID: CVE-2017-10388
DESCRIPTION: An unspecified vulnerability related to the Java SE Libraries
component could allow an unauthenticated attacker to take control of the
system.
CVSS Base Score: 7.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/133813 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVEID: CVE-2017-10356
DESCRIPTION: An unspecified vulnerability related to the Java SE Security
component could allow an unauthenticated attacker to obtain sensitive
information resulting in a high confidentiality impact using unknown attack
vectors.
CVSS Base Score: 6.2
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/133785 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2016-9843
DESCRIPTION: zlib is vulnerable to a denial of service, caused by a big-endian
out-of-bounds pointer. By persuading a victim to open a specially crafted
document, a remote attacker could exploit this vulnerability to cause a denial
of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/120511 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-9842
DESCRIPTION: zlib is vulnerable to a denial of service, caused by an undefined
left shift of negative number. By persuading a victim to open a specially
crafted document, a remote attacker could exploit this vulnerability to cause
a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/120510 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-9841
DESCRIPTION: zlib is vulnerable to a denial of service, caused by an
out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open
a specially crafted document, a remote attacker could exploit this
vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/120509 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-9840
DESCRIPTION: zlib is vulnerable to a denial of service, caused by an
out-of-bounds pointer arithmetic in inftrees.c. By persuading a victim to open
a specially crafted document, a remote attacker could exploit this
vulnerability to cause a denial of service.
CVSS Base Score: 3.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/120508 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
Affected Products and Versions
IBM WebSphere Portal 9.0
IBM WebSphere Portal 8.5
IBM WebSphere Portal 8.0
IBM WebSphere Portal 7.0
IBM WebSphere Portal 6.1
For unsupported versions IBM recommends upgrading to a fixed, supported
version of the product.
Remediation/Fixes
Upgrade the SDK per WebSphere Application Server "Security Bulletin: Multiple
Vulnerabilities in IBM Java SDK affects WebSphere Application Server October
2017 CPU".
For V9.0
Upgrade the SDK.
For V8.5
Upgrade the SDK.
For V8.0
Upgrade the SDK.
For V7.0
Upgrade the SDK.
Workarounds and Mitigations
None
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 v3 Guide
On-line Calculator v3
IBM Java SDK Security Bulletin
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
5 December 2017: 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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