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AUSCERT External Security Bulletin Redistribution
ESB-2016.2020
Security Bulletin: Multiple vulnerabilities affect Rational
Tau and Systems Tester
22 August 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational Tau
IBM Rational Systems Tester
Publisher: IBM
Operating System: Linux variants
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2016-4449 CVE-2016-4448 CVE-2016-4447
CVE-2016-2176 CVE-2016-2107
Reference: ASB-2016.0074
ESB-2016.1398
ESB-2016.1076
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21986460
http://www.ibm.com/support/docview.wss?uid=swg21986456
Comment: This bulletin contains two (2) IBM security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Vulnerabilities in OpenSSL affect Rational Tau
(CVE-2016-2107, CVE-2016-2176)
Security Bulletin
Document information
More support for:
Rational Tau
Documentation
Software version:
4.3, 4.3.0.1, 4.3.0.2, 4.3.0.3, 4.3.0.4, 4.3.0.5, 4.3.0.6
Operating system(s):
Windows
Reference #:
1986460
Modified date:
2016-08-19
Summary
OpenSSL vulnerabilities were disclosed on May 3, 2016 by the OpenSSL Project.
OpenSSL is used by Rational Tau. Rational Tau has addressed the applicable
CVEs.
Vulnerability Details
CVEID:
CVE-2016-2107
DESCRIPTION:
OpenSSL could allow a remote attacker to obtain sensitive information, caused
by an error when the connection uses an AES CBC cipher and the server support
AES-NI. A remote user with the ability to conduct a man-in-the-middle attack
could exploit this vulnerability via the POODLE (Padding Oracle On Downgraded
Legacy Encryption) attack to decrypt traffic.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112854
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
CVEID:
CVE-2016-2176
DESCRIPTION:
OpenSSL could allow a remote attacker to obtain sensitive information, By
sending an overly long ASN.1 string to the X509_NAME_oneline() function, an
attacker could exploit this vulnerability to return arbitrary stack data in
the buffer.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112858
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)
Affected Products and Versions
4.3, 4.3.0.1, 4.3.0.2, 4.3.0.3, 4.3.0.4, 4.3.0.5, 4.3.0.6, 4.3.0.6 Interim
Fix 1, 4.3.0.6 Interim Fix 2, 4.3.0.6 Interim Fix 3, 4.3.0.6 Interim Fix 4,
4.3.0.6 Interim Fix 5, 4.3.0.6 Interim Fix 6
Remediation/Fixes
Upgrade to
Rational Tau Interim Fix 7 for 4.3.0.6
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
Subscribe to
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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
30 June 2016: original document 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: Rational Systems Tester is affected by Libxml2
vulnerabilities (CVE-2016-4447, CVE-2016-4448, CVE-2016-4449)
Security Bulletin
Document information
More support for:
Rational Systems Tester
Documentation
Software version:
3.3, 3.3.0.1, 3.3.0.2, 3.3.0.3, 3.3.0.4, 3.3.0.5, 3.3.0.6
Operating system(s):
Linux, Windows
Reference #:
1986456
Modified date:
2016-08-19
Summary
A set of Libxml2 vulnerabilities were disclosed by the Libxml2 Project.
Libxml2 is used by Rational Systems Tester. Rational Systems Tester has
addressed the applicable CVEs.
Vulnerability Details
CVEID:
CVE-2016-4447
DESCRIPTION:
libxml2 is vulnerable to a denial of service, caused by a heap-based buffer
overflow. By persuading a victim to open a specially crafted XML file, a
remote attacker could overflow a buffer and cause the application to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113522
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID:
CVE-2016-4448
DESCRIPTION:
libxml2 could allow a remote attacker to execute arbitrary code on the
system, caused by a format string error. By using a specially crafted html
file containing malicious format specifiers, a remote attacker could exploit
this vulnerability to execute arbitrary code on the system or cause the
application to crash.
CVSS Base Score: 7.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113523
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:L/A:L)
CVEID:
CVE-2016-4449
DESCRIPTION:
libxml2 could allow a remote attacker to obtain sensitive information, caused
by a XML external entity (XXE) error when processing XML data by the XML
parser. A remote attacker could exploit this vulnerability to obtain
sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113524
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
Rational Systems Tester 3.3, 3.3.0.1, 3.3.0.2, 3.3.0.3, 3.3.0.4, 3.3.0.5,
3.3.0.6, 3.3.0.7, 3.3.0.7 Interim Fix 1, 3.3.0.7 Interim Fix 2, 3.3.0.7
Interim Fix 3, 3.3.0.7 Interim Fix 4
Remediation/Fixes
Upgrade to
Rational Systems Tester Interim Fix 5 for 3.3.0.7
Workarounds and Mitigations
None
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
05 July 2016: original document 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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