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Security Bulletin: Multiple Vulnerabilities in IBM Java SDK affect IBM Notes Standard Client

Security Bulletin


Summary

There are multiple vulnerabilities in IBM® SDK Java™ Technology Edition, Version 6 SR16FP15 that is used by IBM Notes Standard Client. These issues were disclosed as part of the IBM Java SDK updates in January 2016 and includes the vulnerability commonly referred to as “SLOTH”.

Vulnerability Details


CVEID: CVE-2016-0494
DESCRIPTION: An unspecified vulnerability in Oracle Java SE and Java SE Embedded related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact.



CVEID: CVE-2016-0483
DESCRIPTION: An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact.

CVEID: CVE-2015-8472
DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_get_PLTE() and png_set_PLTE() functions. By persuading a victim to open a specially crafted PNG image, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

CVEID: CVE-2016-0475
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the Libraries component has partial confidentiality impact, partial integrity impact, and no availability impact.

CVEID: CVE-2016-0466
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the JAXP component could allow a remote attacker to cause a denial of service resulting in a partial availability impact using unknown attack vectors.

CVEID: CVE-2016-0402
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE and Java SE Embedded related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact.

CVEID: CVE-2015-7575
DESCRIPTION:
The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials.This vulnerability is commonly referred to as “SLOTH".

CVEID: CVE-2016-0448
DESCRIPTION:
An unspecified vulnerability in Oracle Java SE and Java SE Embedded related to the JMX component could allow a remote attacker to obtain sensitive information resulting in a partial confidentiality impact using unknown attack vectors.

CVEID: CVE-2015-5041
DESCRIPTION:
A flaw in the IBM J9 JVM allows code to invoke non-public interface methods under these circumstances. Untrusted code could potentially exploit this. This could lead to sensitive data being exposed to an attacker, or the attacker being able to inject bad data.

CVEID: CVE-2015-7981
DESCRIPTION:
libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information.

CVEID:
CVE-2015-8540
DESCRIPTION:
libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

CVEID: CVE-2015-8126
DESCRIPTION:
libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions. By persuading a victim to open a specially-crafted PNG file, a remote attacker could overflow a buffer and execute arbitrary code on the system.

Affected Products and Versions

IBM Notes Standard Client 9.0.1 through Notes Standard Client 9.0.1 FP5IF1
IBM Notes Standard Client 8.5.3 through Notes Standard Client 8.5.3 FP6IF8
All 9.0 and 8.5.x releases of IBM Notes Standard Client prior to those listed above

Remediation/Fixes


IBM Notes Standard Client - Multiple vulnerabilities in IBM Java 6 SR16FP15 affect IBM Notes Standard Client are also tracked as SPR KLYHA5YRMV. Refer to the JVM tab in the technotes linked below for download links to a single standalone Java patch that addresses these vulnerabilities.



Customers who remain on the following releases may open a Service Request with IBM Support and reference SPRs KLYHA5YRMV for a custom hotfix:
  • IBM Notes Standard Client 9.0.1 though Notes Standard Client 9.0.1 FP5 IF1
  • IBM Notes Standard Client 9.0.0x
  • IBM Notes Standard Client 8.5.3 through Notes Standard Client 8.5.3 FP6IF8
  • IBM Notes Standard Client 8.5.2x
  • IBM Notes Standard Client 8.5.1x

Workarounds and Mitigations


For CVE-2015-7575:

Java 6 requires code changes in the JSSE component in addition to the java.security file modifications, so upgrading the JDK is the only solution.

Administrators can help to protect their Domino servers against unauthorized access by strictly limiting the use of Java functions on the server through careful population of the Programmability Restrictions section on the Security tab of the Server document. In particular, IBM recommends prohibiting server access by untrusted code, Java or otherwise.

Likewise, administrators can use Policies to configure Notes Standard Client Execution Control Lists to limit such attacks against the Notes Standard client.

Get Notified about Future Security Bulletins

References

Complete CVSS v2 Guide
On-line Calculator v2
Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France

*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.

Document information

More support for: IBM Notes
Security

Software version: 8.5, 8.5.1, 8.5.1.5, 8.5.2, 8.5.2.4, 8.5.3, 8.5.3.6, 9.0.1, 9.0.1.5

Operating system(s): Linux, Windows

Reference #: 1976200

Modified date: 11 February 2016