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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.1199
          Security Bulletin: Multiple vulnerabilities in OpenSSL
                       affect IBM Predictive Insight
                                13 May 2016

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

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

Product:           IBM PredictiveInsight
Publisher:         IBM
Operating System:  AIX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-2842 CVE-2016-0800 CVE-2016-0799
                   CVE-2016-0798 CVE-2016-0797 CVE-2016-0705
                   CVE-2016-0704 CVE-2016-0703 CVE-2016-0702

Reference:         ESB-2016.0560
                   ESB-2016.0547
                   ESB-2016.0544
                   ESB-2016.0543.2

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21982289

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Security Bulletin: Multiple vulnerabilities in OpenSSL affect IBM Predictive
Insight

Document information

More support for:
IBM PredictiveInsight

Software version:
8.5, 8.6, 9.0

Operating system(s):
AIX, Linux, Solaris, Windows

Reference #:
1982289

Modified date:
2016-05-10

Security Bulletin

Summary

OpenSSL vulnerabilities were disclosed on March 1, 2016 by the OpenSSL
Project. OpenSSL is used by IBM Predictive Insight. IBM Predictive Insight
has addressed the applicable CVEs including the DROWN: Decrypting RSA
with Obsolete and Weakened eNcryption" vulnerability.

Vulnerability Details

CVEID: CVE-2016-0800
DESCRIPTION: OpenSSL could allow a remote attacker to bypass security
restrictions. By using a server that supports SSLv2 and EXPORT cipher suites
as a Bleichenbacher RSA padding oracle, an attacker could exploit this
vulnerability to decrypt TLS sessions between clients and non-vulnerable
servers. This vulnerability is also known as the DROWN attack.
CVSS Base Score: 7.4
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111139 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2016-0705
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a
double-free error when parsing DSA private keys. An attacker could exploit
this vulnerability to corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111140 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-2016-0798
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a
memory leak in SRP servers. An attacker could exploit this vulnerability
using a specially crafted username value to cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111141 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-2016-0797
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL
pointer dereference in the BN_hex2bn/BN_dec2bn() function. An attacker
could exploit this vulnerability using specially crafted data to cause a
denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111142 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-2016-0799
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by a memory error in the BIO_*printf() functions. An
attacker could exploit this vulnerability using specially crafted data to
trigger an out-of-bounds read.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111143 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0702
DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive
information, caused by a side-channel attack against a system based on
the Intel Sandy-Bridge microarchitecture. An attacker could exploit this
vulnerability to recover RSA keys.
CVSS Base Score: 2.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111144 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0703
DESCRIPTION: OpenSSL could allow a remote attacker to bypass security
restrictions, caused by the failure to enforce that a clear-key-length
value is 0 for non-export ciphers by the SSLv2 's2_srvr.c code. When
clear-key bytes displace encrypted-key bytes, an attacker could exploit
this vulnerability to conduct a divide-and-conquer key recovery attack.
CVSS Base Score: 7.4
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111145 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2016-0704
DESCRIPTION: OpenSSL could allow a remote attacker to bypass security
restrictions. The s2_srvr.c code overwrites the wrong bytes in the master-key
when applying Bleichenbacher protection for export cipher suites. An
attacker could exploit this vulnerability using a Bleichenbacher oracle
to decrypt sessions.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111146 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:H/A:N)

CVEID: CVE-2016-2842
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by
the failure to verify that a certain memory allocation succeeds by the
doapr_outch function. A remote attacker could exploit this vulnerability
using a specially crafted string to cause an out-of-bounds write or consume
an overly large amount of resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111304 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:H)

Affected Products and Versions

IBM Predictive Insight 8.5 - 9.0

Remediation/Fixes

Customers using IBM Predictive Insight are recommended to contact Technical
Support team for further guidance.

IBM recommends that the same certificate should ONLY be shared with
identical server configuration and software.
If the same certificate were shared with different server(s) configuration
or software, IBM recommends replacing the different server(s) with unique
certificates to protect against the DROWN exposure.

Workarounds and Mitigations

IBM Predictive Insight customers can mitigate the risk by allowing only
white-listed IPs to access the application.

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
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

Change History

29 April 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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