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Security Bulletin: Multiple Vulnerabilities in IBM® Java SDK affect WebSphere Application Server April 2019 CPU

Security Bulletin


Summary

There are multiple vulnerabilities in the IBM® SDK Java™ Technology Edition that is shipped with IBM WebSphere Application Server. 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.
HP fixes are on a delayed schedule.

CVEID: CVE-2019-2602
DESCRIPTION: An unspecified vulnerability related to the Java SE 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)

CVEID: CVE-2019-2684
DESCRIPTION: An unspecified vulnerability related to the Java SE RMI component could allow an unauthenticated attacker to cause no confidentiality impact, high integrity impact, and no availability impact.
CVSS Base Score: 5.9
CVSS Temporal Score: See 
https://exchange.xforce.ibmcloud.com/vulnerabilities/159776 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)


Affected Products and Versions

IBM SDK, Java Technology Editions used with WebSphere Application Server Liberty
IBM SDK, Java Technology Editions used with IBM WebSphere Application Server Traditional Version 9.0.0.0 through 9.0.0.11, 8.5.0.0 through 8.5.5.15.
IBM SDK, Java Technology Editions shipped in Application Client for IBM WebSphere Application Server Version 9.0.0.0 through 9.0.0.11, 8.5.0.0 through 8.5.5.15.

Remediation/Fixes

Download and apply the interim fix APARs below, for your appropriate release

For the IBM Java SDK updates:


For WebSphere Application Server Liberty:
For the IBM SDK, Java Technology Version that you use, apply one of the interim fixes below:

  • Apply Interim Fix PH11179: Will upgrade you to IBM SDK, Java Technology Edition, Version 7 Service Refresh 10 Fix Pack 45
  • Upgrade to IBM SDK, Java Technology Edition Version 7R1  SR4 FP45 or IBM SDK, Java Technology Edition Version 8 SR5 FP35, please refer to IBM Java SDKs for Liberty

For Version 9 WebSphere Application Server Traditional:

Update to the IBM SDK, Java Technology Edition, Version 8 Service Refresh 5 Fix Pack 35 using the instructions in the IBM Knowledge Center Installing and updating IBM SDK, Java Technology Edition on distributed environments then use the IBM Installation manager to access the online product repositories to install the SDK or use IBM Installation manager and access the packages from Fixcentral .


For V8.5.0.0 through 8.5.5.15 WebSphere Application Server Traditional and WebSphere Application Server Hypervisor Edition:

For the IBM SDK, Java Technology Version that you use, upgrade to the minimal fix pack level of WebSphere Application Server as noted in the interim fix below then apply the interim fixes:
 

For IBM SDK Java Technology Edition Version 7
  • Apply Interim Fix PH11179: Will upgrade you to IBM SDK, Java Technology Edition, Version 7 Service Refresh 10 Fix Pack 45

For IBM SDK Java Technology Edition Version 7R1
  • Apply Interim Fix PH11178: Will upgrade you to IBM SDK, Java Technology Edition, Version 7R1 Service Refresh 4 Fix Pack 45

For IBM SDK Java Technology Edition Version 8
  • Apply Interim Fix PH11175: Will upgrade you to IBM SDK, Java Technology Edition, Version 8 Service Refresh 5 Fix Pack 35
  • For environments that have been upgraded to use the new default IBM SDK Version 8 bundled with WebSphere Application Server Fix Pack 8.5.5.11 or later: Apply Interim Fix PH11176: Will upgrade you to IBM SDK, Java Technology Edition, Version 8 Service Refresh 5 Fix Pack 35

--OR--

  • Apply IBM Java SDK shipped with WebSphere Application Server Fix pack 16 (8.5.5.16) or later (targeted availability 3Q 2019).

For Application Client for WebSphere Application Server:

Follow instructions above for the WebSphere Application Server to download the Interim Fix needed for your version of the Application client.


WebSphere Application Server V7 and V8 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product.


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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.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

IBM Java SDK Security Bulletin

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

02 May 2019: original bulletin published
02 May 2019: fixed issue so CVE's were visible

*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: WebSphere Application Server

Software version: 7.0, 8.0, 8.5, 9.0, Liberty

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition: Advanced, Application Client, Base, Developer, Enterprise, Express, Liberty, Network Deployment, Single Server

Reference #: 0883126

Modified date: 02 May 2019