Security Bulletin: Multiple vulnerabilities in IBM® Java SDK affects Liberty for Java for IBM Bluemix January 2017 CPU

Summary

There are multiple vulnerabiltities in the IBM® SDK Java™ Technology Edition that is shipped with IBM WebSphere Application Server. These issues were disclosed as part of the IBM Java SDK updates in January 2017. These may affect some configurations of IBM WebSphere Application Server Traditional, IBM WebSphere Application Server Liberty and IBM WebSphere Application Server Hypervisor Edition.

Vulnerability Details

If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether the complete list of vulnerabilities are applicable to your code. For a complete list of vulnerabilities please refer to the link for “IBM Java SDK Security Bulletin" located in the References section for more information.

CVEID: CVE-2016-5546**
DESCRIPTION:** An unspecified vulnerability related to the Libraries component has no confidentiality impact, high integrity impact, and no availability impact.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120869 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:H/A:N)
**
CVEID:** CVE-2016-5548**
DESCRIPTION:** An unspecified vulnerability related to the Libraries component could allow a remote attacker to obtain sensitive information resulting in a high confidentiality impact using unknown attack vectors.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120864 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:N/A:N)

CVEID: CVE-2016-5549**
DESCRIPTION:** An unspecified vulnerability related to the Libraries component could allow a remote attacker to obtain sensitive information resulting in a high confidentiality impact using unknown attack vectors.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120863 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:N/A:N)
**
CVEID:** CVE-2016-5547**
DESCRIPTION:** An unspecified vulnerability related to the Libraries component could allow a remote attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/120871 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-2016-2183**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DES/3DES cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 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)

Affected Products and Versions

This vulnerability affects all versions of Liberty for Java in IBM Bluemix up to and including v3.4.1.

Remediation/Fixes

To upgrade to Liberty for Java v3.8-20170308-1507 or higher, you must re-stage or re-push your application.

To find the current version of Liberty for Java in IBM Bluemix being used, from the command-line Cloud Foundry client by running the following commands:

cf ssh <appname> -c cat “staging_info.yml”

Look for the following lines:

{“detected_buildpack”:“Liberty for Java™ (WAR, liberty-xxx, buildpack-v3.xxx, ibmjdk-1.8.0_20161213, env)”,“start_command”:“.liberty/initial_startup.rb”}

To re-stage your application using the command-line Cloud Foundry client, use the following command:

cf restage <appname>

To re-push your application using the command-line Cloud Foundry client, use the following command:

cf push <appname>