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Security Bulletin: Multiple vulnerabilities in current releases of the IBM® SDK, Java™ Technology Edition

Security Bulletin


Summary

Java SE issues disclosed in the Oracle January 2016 Critical Patch Update, plus three additional vulnerabilities.

Vulnerability Details

CVE IDs: CVE-2016-0494 CVE-2016-0483 CVE-2015-8126 CVE-2015-8472 CVE-2016-0475 CVE-2016-0466 CVE-2016-0402 CVE-2015-7575 CVE-2016-0448 CVE-2015-8540 CVE-2015-7981 CVE-2015-5041

DESCRIPTION: This bulletin covers all applicable Java SE CVEs published by Oracle as part of their January 2016 Critical Patch Update. For more information please refer to Oracle's January 2016 CPU Advisory and the X-Force database entries referenced below.

This bulletin also describes three additional vulnerabilities which affect IBM SDK, Java Technology Edition.

CVEID: CVE-2016-0494
DESCRIPTION:
 An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact.
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109944 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)

CVEID: CVE-2016-0483
DESCRIPTION:
 An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact.
CVSS Base Score: 10
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109945 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)

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.
CVSS Base Score: 7.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108010 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

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.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109392 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:L/A:L)

CVEID: CVE-2016-0475
DESCRIPTION:
 An unspecified vulnerability related to the Libraries component has partial confidentiality impact, partial integrity impact, and no availability impact.
CVSS Base Score: 5.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109946 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVEID: CVE-2016-0466
DESCRIPTION:
 An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109948 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2016-0402
DESCRIPTION:
 An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109947 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

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.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)

CVEID: CVE-2016-0448
DESCRIPTION:
 An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109949 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N)

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.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109219 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:H/A:H)

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.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107740 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-2015-5041
DESCRIPTION:
 A flaw in the IBM J9 JVM allows code to invoke non-public interface methods under certain 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.
CVSS Base Score: 4.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/106719 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:L/A:N)

Affected Products and Versions

These vulnerabilities affect IBM SDK, Java Technology Edition, Version 6 Service Refresh 16 Fix Pack 15 and earlier releases
These vulnerabilities affect IBM SDK, Java Technology Edition, Version 6R1 Service Refresh 8 Fix Pack 15 and earlier releases
These vulnerabilities affect IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 Fix Pack 20 and earlier releases
These vulnerabilities affect IBM SDK, Java Technology Edition, Version 7R1 Service Refresh 3 Fix Pack 20 and earlier releases
These vulnerabilities affect IBM SDK, Java Technology Edition, Version 8 Service Refresh 2 and earlier releases

Remediation/Fixes

The fixes for these vulnerabilities are included in IBM SDK, Java Technology Edition, Version 6 Service Refresh 16 Fix Pack 20 and subsequent releases
The fixes for these vulnerabilities are included in IBM SDK, Java Technology Edition, Version 6R1 Service Refresh 8 Fix Pack 20 and subsequent releases
The fixes for these vulnerabilities are included in IBM SDK, Java Technology Edition, Version 7 Service Refresh 9 Fix Pack 30 and subsequent releases
The fixes for these vulnerabilities are included in IBM SDK, Java Technology Edition, Version 7R1 Service Refresh 3 Fix Pack 30 and subsequent releases
The fixes for these vulnerabilities are included in IBM SDK, Java Technology Edition, Version 8 Service Refresh 2 Fix Pack 10 and subsequent releases

The fix for CVE-2015-7575 was also included in IBM SDK, Java Technology Edition, Version 6 Service Refresh 16 Fix Pack 16 (HP-UX platform only).

For detailed information on which CVEs affect which releases, please refer to the IBM SDK, Java Technology Edition Security Alerts page.

IBM SDK, Java Technology Edition releases can be downloaded, subject to the terms of the developerWorks license, from here

IBM customers requiring an update for an SDK shipped with an IBM product should contact IBM support, and/or refer to the appropriate product security bulletin.

APAR numbers are as follows:

IV80580 (CVE-2016-0494)
IV80581 (CVE-2016-0483)
IV80579 (CVE-2015-8126 and CVE-2015-8472)
IV80582 (CVE-2016-0475)
IV80583 (CVE-2016-0466)
IV80584 (CVE-2016-0402)
IV80331 (CVE-2015-7575)
IV80585 (CVE-2016-0448)
IV80611 (CVE-2015-8540 and CVE-2015-7981)
IV72872 (CVE-2015-5041)

Workarounds and Mitigations

For CVE-2015-7575, users of Java 7 and later can address the issue by updating the /jre/lib/security/java.security file as follows (both steps are required):

  • Add MD5 to the jdk.certpath.disabledAlgorithms property - e.g. jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024, MD5
  • Add MD5withRSA to the jdk.tls.disabledAlgorithms property - e.g. jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768, MD5withRSA
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.

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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

Related information

Acknowledgement

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

Change History

27 January 2016: Original version published
29 January 2016: Fixed a typo in the mitigation instructions#
3 May 2016: Fixed typos in CVSS vectors for CVE-2015-8126, CVE-2015-8472, and CVE-2016-7575

*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: Runtimes for Java Technology

Software version: 6.0, 6.1, 7.0, 7.1, 8.0

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Software edition: Java SE

Reference #: 1974193

Modified date: 03 May 2016