ESB-2017.1766 - [Linux][HP-UX][Solaris][AIX] IBM Sterling Connect:Direct for UNIX: Denial of service - Remote/unauthenticated 2017-07-18

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1766
          Security Bulletin: Vulnerabilities affect IBM Sterling
                          Connect:Direct for UNIX
                               18 July 2017

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

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

Product:           IBM Sterling Connect:Direct for UNIX
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Solaris
                   Linux variants
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-3731 CVE-2016-9843 CVE-2016-9841
                   CVE-2016-9840  

Reference:         ESB-2017.1663
                   ESB-2017.0488.3
                   ESB-2017.0476
                   ESB-2017.0317
                   ESB-2017.0254

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg22005891
   http://www-01.ibm.com/support/docview.wss?uid=swg22005893

Comment: This bulletin contains two (2) IBM security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin:  Vulnerabilities in zlib affect IBM Sterling
Connect:Direct for UNIX (CVE-2016-9840, CVE-2016-9841, CVE-2016-9843)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for UNIX

Software version:

4.1, 4.2

Operating system(s):

AIX, HP-UX, Linux, Solaris

Reference #:

2005891

Modified date:

17 July 2017

Summary

Vulnerabilities were reported in zlib. zlib is used by IBM Sterling
Connect:Direct for UNIX. IBM Sterling Connect:Direct for Microsoft Windows
has addressed the applicable CVEs.

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-2016-9843

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 Sterling Connect:Direct for Unix 4.2.0

IBM Sterling Connect:Direct for Unix 4.1.0

Remediation/Fixes

V.R.M.F    APAR     Remediation/First Fix
4.2.0      IT21370  Apply 4.2.0.4.iFix056, available on Fix Central
4.1.0      IT21370  Apply 4.1.0.4 iFix098, available in cumulative iFix099 on Fix Central

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

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



Related information

IBM Secure Engineering Web Portal


IBM Product Security Incident Response Blog



Change History

14 July 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.

- ---

Security Bulletin:  Vulnerability in OpenSSL affects IBM Sterling
Connect:Direct for UNIX (CVE-2017-3731)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for UNIX

Software version:

4.1

Operating system(s):

AIX, HP-UX, Linux, Solaris

Reference #:

2005893

Modified date:

17 July 2017

Summary

OpenSSL vulnerabilities were disclosed on January 26, 2017 by the OpenSSL
Project. OpenSSL is used by IBM Sterling Connect:Direct for UNIX. IBM
Sterling Connect:Direct for UNIX has addressed the applicable CVEs.

Vulnerability Details

CVEID:

CVE-2017-3731

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by an out-of-bounds read
when using a specific cipher. By sending specially crafted truncated packets,
a remote attacker could exploit this vulnerability using CHACHA20/POLY1305 to
cause the application to crash.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/121312

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 Sterling Connect:Direct for Unix 4.1.0

Remediation/Fixes


V.R.M.F

APAR

Remediation/First Fix

V.R.M.F    APAR     Remediation/First Fix
4.1.0      IT21414  Apply 4.1.0.4.iFix099, available on Fix Central


Alternatively, upgrade to version 4.2.0, which is not affected by the 
vulnerability.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

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



Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog



Change History

14 July 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.

- --------------------------END INCLUDED TEXT--------------------

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