There are multiple vulnerabilities in IBM® Runtime Environments Java™ Technology Edition, Versions 188.8.131.52 and earlier, 184.108.40.206 and earlier, 220.127.116.11 and earlier used by IBM® Db2®. These issues were disclosed as part of the IBM® SDKs Java™ Technology Edition updates in Jan 2021.
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding. By sending an overly long string, 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/195353 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
All product versions on Linux and AIX are impacted. Windows is not impacted.
The fix for this vulnerability is in the latest version of IBM JDK. Customers running any vulnerable fixpack level of an affected Program can download the latest version of IBM JDK from Fix Central.
Affected IBM® SDKs Java™ Technology Edition, Versions :
- 18.104.22.168 and earlier
- 22.214.171.124 and earlier
- 126.96.36.199 and earlier
- Earlier releases (6, 5.0, 1.4.2, 1.3.1, 1.2.2 etc.) may also be affected, but they are no longer supported.
Fixes for applicable vulnerabilities are included in IBM® SDKs Java™ Technology Edition, Versions :
Refer to the table below to determine the IBM JDK level that contains the fix. Then follow the instructions below to perform the JDK installation.
|Db2 Release||Fixed IBM Release|
|v9.7.x||188.8.131.52 or later|
|V10.1.x||184.108.40.206 or later|
|V10.5.x||220.127.116.11 or later|
|V11.1.x||18.104.22.168 or later|
|V11.5.x||22.214.171.124 or later|
Instructions for IBM JDK Installation can be found here:
Workarounds and Mitigations
Get Notified about Future Security Bulletins
22 Apr 2021: Initial Publication
*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.
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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22 April 2021