IBM Support

Security Bulletin: Vulnerability in IBM Java SDK (April 2019) affecting IBM Application Delivery Intelligence for IBM Z V5.1.0, V5.0.5, and V5.0.4

Created by Ali Hussain on
Published URL:
https://www.ibm.com/support/pages/node/959605
959605

Security Bulletin


Summary

A vulnerability is identified in IBM® SDK Java™ Technology Edition Version 1.8 and Version 1.7 that are used by IBM® Application Delivery Intelligence for IBM Z® V5.1.0, V5.0.5, and V5.0.4 respectively. These issues were disclosed as part of the IBM® Java™ SDK updates in April 2019.

Vulnerability Details

CVEID: CVE-2019-2602
DESCRIPTION: An unspecified vulnerability in Oracle Java SE related to the Java SE, Java SE Embedded Libraries component could allow an unauthenticated attacker to cause a denial of service resulting in a high availability impact using unknown attack vectors.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/159698 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 Application Delivery Intelligence for IBM Z V5.1.0

IBM Application Delivery Intelligence for IBM Z V5.0.5

IBM Application Delivery Intelligence for IBM Z V5.0.4

Remediation/Fixes

Obtain the latest Java JRE CPU update for the IBM Java SDK by using the following information.

ADI 5.1.0, Java 1.8

ADI 5.0.5, Java 1.8

ADI 5.0.4, Java 1.7

  1. Upgrade your JRE by following the instructions in the link below:
    How to update the IBM SDK for Java of IBM Rational products based on version 3.0.1.6 or later of IBM's Jazz technology  

  2. Navigate to the server directory in your Rational® product installation path, and go to jre/lib/security path.

    1. Open the java.security file by using your preferred text editor (for example, Notepad for Windows™ or Vim Editor for Linux®).

    2. Remove the MD5 option from the jdk.jar.disabledAlgorithms parameter set:

      • Before modification:
        jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
         
      • After modification:
        jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024
 

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
30 July 2019

UID

ibm10959605

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