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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0695
   Security Bulletin: Vulnerabilities in OpenSSL affect IBM Sterling B2B
         Integrator (CVE-2015-3193, CVE-2015-3194, CVE-2015-3195,
                       CVE-2015-3196, CVE-2015-1794)
                               15 March 2016

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

Product:           IBM Sterling B2B Integrator
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Access Privileged Data   -- Existing Account      
                   Access Confidential Data -- Remote/Unauthenticated
                   Denial of Service        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-3196 CVE-2015-3195 CVE-2015-3194
                   CVE-2015-3193 CVE-2015-1794 

Reference:         ESB-2016.0147
                   ESB-2016.0040
                   ESB-2016.0012
                   ESB-2015.3214
                   ESB-2015.3201
                   ESB-2015.3138
                   ESB-2015.3115
                   ESB-2015.3050
                   ESB-2015.3042

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21978713

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Security Bulletin: Vulnerabilities in OpenSSL affect IBM Sterling B2B
Integrator (CVE-2015-3193, CVE-2015-3194, CVE-2015-3195, CVE-2015-3196,
CVE-2015-1794)

Security Bulletin

Document information

More support for:

Sterling B2B Integrator

Software version:

5.2, 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6

Operating system(s):

AIX, HP-UX, IBM i, Linux, Solaris, Windows

Reference #:

1978713

Modified date:

2016-03-14

Summary

OpenSSL vulnerabilities were disclosed on December 3, 2015 by the OpenSSL
Project. OpenSSL is used by IBM Sterling B2B Integrator. IBM Sterling B2B
Integrator has addressed the applicable CVEs.

Vulnerability Details

CVEID:

CVE-2015-3193

DESCRIPTION:

OpenSSL could allow a remote attacker to obtain sensitive information, caused
by an error in the x86_64 Montgomery squaring procedure. An attacker with
online access to an unpatched system could exploit this vulnerability to
obtain private key information.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108502

for the current score

CVSS Environmental Score*: Undefined

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

CVEID:

CVE-2015-3194

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a NULL pointer
dereference when verifying certificates via a malformed routine. An attacker
could exploit this vulnerability using signature verification routines with
an absent PSS parameter to cause any certificate verification operation to
crash.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108503

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)

CVEID:

CVE-2015-3195

DESCRIPTION:

OpenSSL could allow a remote attacker to obtain sensitive information, caused
by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could
exploit this vulnerability to obtain CMS data and other sensitive
information.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108504

for the current score

CVSS Environmental Score*: Undefined

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

CVEID:

CVE-2015-3196

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by a race condition when
PSK identity hints are received by a multi-threaded client and the SSL_CTX
structure is updated with the incorrect value. An attacker could exploit this
vulnerability to possibly corrupt memory and cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108505

for the current score

CVSS Environmental Score*: Undefined

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

CVEID:

CVE-2015-1794

DESCRIPTION:

OpenSSL is vulnerable to a denial of service, caused by an error when a
client receives a ServerKeyExchange for an anonymous DH ciphersuite with the
value of p set to 0. An attacker could exploit this vulnerability to trigger
a segfault and cause a denial of service.

CVSS Base Score: 3.7

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/108539

for the current score

CVSS Environmental Score*: Undefined

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

Affected Products and Versions

IBM Sterling B2B Integrator 5.2

Remediation/Fixes

Product & Version            		      Remediated Fix
IBM Sterling B2B Integrator 5.2               SWIFTNet Customers must upgrade their current version of OpenSSL to version 1.0.1q

Workarounds and Mitigations

None

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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 March 2016: 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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