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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.0985
        Security Bulletin: Multiple security issues in IBM Tealeaf
            Customer Experience on Cloud Network Capture Add-On
                               18 April 2017

===========================================================================

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

Product:           IBM Tealeaf Customer Experience
Publisher:         IBM
Operating System:  Windows
                   Linux variants
                   Virtualisation
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-3730 CVE-2016-9842 CVE-2016-9841
                   CVE-2016-9840  

Reference:         ESB-2017.0805
                   ESB-2017.0492
                   ESB-2017.0488.3
                   ESB-2017.0386.2

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22000445

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Security Bulletin: Multiple security issues in IBM Tealeaf Customer
Experience on Cloud Network Capture Add-On

Security Bulletin

Document information

More support for:

Tealeaf Customer Experience

Software version:

Version Independent

Operating system(s):

Platform Independent

Reference #:

2000445

Modified date:

17 April 2017

Summary

Multiple vulnerabilities in zlib and openSSL libraries can cause denial of
service in IBM Tealeaf Customer Experience on Cloud Network Capture Add-On.

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-2017-3730

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a NULL pointer
dereference. By sending specially crafted parameters for a DHE or ECDHE key
exchange, a remote attacker could exploit this vulnerability to cause the
application to crash.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/121311

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM Tealeaf Customer Experience on Cloud Network Capture Add-On.

Remediation/Fixes

Client Success Portal:

https://tealeaf.support.ibmcloud.com/ics/support/DLList.asp?task=download&folderID=121267

Workarounds and Mitigations

Access to local networks containing networked Tealeaf servers should be
limited to avoid unauthorized access to or disruption of Tealeaf services.

Access to PCA systems should be limited as much as possible.

References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

17 April 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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