Security Bulletin
Summary
A security vulnerability has been identified in IBM SDK that could affect Db2 Query Management Facility.
Vulnerability Details
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The fix ensures that illegal characters in IDN URLs are detected and handled gracefully.
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The fix corrects the flaw.
DESCRIPTION: A flaw in the java.util component allows an attacker to inflict a DoS via malicious serialized data which triggers an OutOfMemoryError.
The fix ensures that this type of malicious data is detected and handled gracefully.
DESCRIPTION: A flaw in the java.lang component allows an attacker to inflict a DoS via malicious serialized data which triggers an OutOfMemoryError.
The fix ensures that this type of malicious data is detected and handled gracefully.
Affected Products and Versions
| Principal Product and Version(s) | Affected Supporting Product |
|---|---|
| DB2 Query Management Facility Classic Edition v11.1 | |
| Query Management Facility Enterprise Edition V11.1 | |
| DB2 Query Management Facility for z/OS v12.1 | |
| DB2 Query Management Facility for z/OS v12.2 |
Remediation/Fixes
Steps to update Java - QMF for Workstation:
1. Download JRE 8.0.5.40 version from IBM Java download portal.
2. Close QMF for workstation , if any instance is running.
3. Copy 8.0.5.40 JRE version to C:\Program Files\IBM\Db2 Query Management Facility\QMF for Workstation\jre.
4. Start application
Steps to update Java - QMF Vision:
1. Go to: https://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
2. Download "jre-8u221-windows-x64.tar.gz", and extract the files to a temporary location.
3. Stop the following Windows services:
- IBM QMF Vision Indexing Service (this will also stop IBM QMF Vision Web Service due to dependencies)
- QMFServerLite
4. Delete C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\elasticsearch\java\jre1.8.0_131.
Note: The folder name would be “jre” in case security bulletin reference # 0880785 is already applied.
5. Copy folder jre1.8.0_221 from the temporary location to C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\elasticsearch\java.
6. Rename folder jre1.8.0_221 to jre.
Note: If the folder in the java folder is already renamed to “jre” via the security bulletin reference # 0880785, then steps 7 through 12 are not required. You can directly go to step 13 and start the relevant services,
Security bulletin # 0880785 link - https://www-01.ibm.com/support/docview.wss?uid=ibm10880785
7. Under C:\Program Files\IBM\DB2 Query Management Facility\QMF Vision\, edit the following 6 files:
elasticsearch/bin/install.bat
elasticsearch/bin/start.bat
elasticsearch/bin/stop.bat
elasticsearch/bin/uninstall.bat
qmfserver/bat/setenv.bat
qmfserver/conf/wrapper.conf
For each file, replace "jre1.8.0_131" with "jre", and save.
8. Open a Windows Command window in Administrator mode and Change directory to elasticsearch/bin.
9. Execute:
uninstall.bat
install.bat
10. Change directory to qmfserver/bat.
11 Execute:
uninstallService.bat
installService.bat.
12. In the Windows Services console, edit "IBM QMF Vision Indexing Service" to change startup type from "Manual" to "Automatic".
13. Restart Windows Services:
- IBM QMF Vision Indexing Service
- IBM QMF Vision Web Service
- QMFServerLite
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
*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:
14 November 2019
UID
ibm11106685