ESB-2017.3111 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Portal: Multiple vulnerabilities 2017-12-06

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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

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        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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