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AUSCERT External Security Bulletin Redistribution
ESB-2017.3110
Security Bulletin:Multiple vulnerabilities in IBM Java
Runtime affect IBM Support Assistant Team Server
6 December 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Support Assistant Team Server
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: 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=swg22011294
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Security Bulletin:Multiple vulnerabilities in IBM Java Runtime affect IBM
Support Assistant Team Server
Security Bulletin
Document information
More support for: IBM Support Assistant
Team Server
Software version: 5.0, 5.0.1.0, 5.0.1.1, 5.0.2.0, 5.0.2.1, 5.0.2.2, 5.0.2.3,
5.0.2.4, 5.0.2.5
Operating system(s): AIX, Linux, Windows
Software edition: TeamServer
Reference #: 2011294
Modified date: 05 December 2017
Summary
There are multiple vulnerabilities in IBM Runtime Environment Java Version
1.8.0 used by IBM Support Assistant Team Server. These issues were disclosed
as part of the IBM Java SDK updates in Apr 2017.
Vulnerability Details
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-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)
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-2016-9842
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-2016-9843
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)
Affected Products and Versions
IBM Support Assistant Team Server version 5.0.0 - 5.0.2.5
Remediation/Fixes
The recommended solution is to install the new IBM Support Assistant Team
Server 5.0.2.5.
For V5.0.0 through 5.0.2.4 IBM recommends upgrading to IBM Support Assistant
Team Server 5.0.2.5
Workarounds and Mitigations
None
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
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
8 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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