ESB-2017.1833 - [Win][Linux][HP-UX][Solaris][AIX] IBM DB2 Connect: Denial of service - Remote with user interaction 2017-07-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1833
 Security Bulletin: Vulnerabilities in open source zlib library affect IBM
  Data Server Driver Package and IBM Data Server Driver for ODBC and CLI
                               26 July 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM DB2 Connect
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-9843 CVE-2016-9842 CVE-2016-9841
                   CVE-2016-9840  

Reference:         ESB-2017.0985
                   ESB-2017.0805
                   ESB-2017.0492

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22002754

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Security Bulletin: Vulnerabilities in open source zlib library affect IBM
Data Server Driver Package and IBM Data Server Driver for ODBC and CLI

Document information

More support for: DB2 Connect

Software version: 11.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Reference #: 2002754

Modified date: 24 July 2017

Security Bulletin

Summary

Vulnerabilities have been addressed in the open source zlib library
component of IBM Data Server Driver Package and IBM Data Server Driver
for ODBC and CLI.

Vulnerability Details

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

The following editions are affected in fix pack V11.1 on all Platforms.
- - IBM Data Server Driver for ODBC and CLI
- - IBM Data Server Driver Package

Remediation/Fixes

The fix for this problem is available for IBM Data Server Driver Package
and IBM Data Server Driver for ODBC and CLI in Db2 11.1.2.2 (Mod 2 fix
pack 2) and later.

Refer to the following chart to determine how to proceed to obtain a
needed fixpack.

Product					VRMF				APAR	Remidiation/First Fix
IBM Data Server Driver Package		DB2 11.1 Mod 2 Fix Pack 2	Nil	MacOS 64 bit
										Linux/390x 64 bit
										IBM Data Server Driver for ODBC, CLI, and .NET Merge Modules (Windows/x86-64 64 bit)
										Windows/x86-64 64 bit
										Windows/x86-32 32 bit
										IBM Data Server Driver for ODBC, CLI, and .NET Merge Modules (Windows/x86-32 32 bit)
										Linux/ppc64 64 bit
										Linux/x86-32 32 bit
										Linux/x86-64 64 bit
										AIX 64 bit

IBM Data Server Driver for ODBC and 	DB2 11.1 Mod 2 Fix Pack 2	Nil	Linux/390x 64 bit
CLI (32 bit)									AIX 64 bit

IBM Data Server Driver for ODBC and 	DB2 11.1 Mod 2 Fix Pack 2	Nil	Linux/390x 64 bit
CLI (64 bit)									Windows/x86-64 64 bit
										Windows/x86-32 32 bit
										Linux/ppc64 64 bit
										Linux/x86-32 32 bit
										Linux/x86-64 64 bit
										AIX 64 bit

Workarounds and Mitigations

None

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alerts like this.

References
Complete CVSS v3 Guide
On-line Calculator v3

Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

None

Change History

24-July-2017 Initial 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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