Security Bulletin
Summary
There is a vulnerability in the Apache Log4j open source library used by IBM Informix Dynamic Server for IBM Informix HQ. The fix includes Apache Log4j 2.17.1. Customers are encouraged to take immediated action by applying the interim fix.
Vulnerability Details
CVEID: CVE-2021-4104
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data when the attacker has write access to the Log4j configuration. If the deployed application is configured to use JMSAppender, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Informix Dynamic Server | 14.10 |
| IBM Informix Dynamic Server | 12.10.x |
Remediation/Fixes
For 14.10 IBM Informix Server
- Go to https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EInformation%20Management&product=ibm/Information+Management/Informix&release=14.10.FC7&platform=All&function=all
- Download and install the 14.10.FC7W1 version for your platform which contains the fix in InformixHQ.
Workarounds and Mitigations
IBM strongly recommends addressing the vulnerability now by applying the Interim Fix.
For 12.10 IBM Informix Server
- Go to Fix Central and search for your product version:
- Download informixhq-server.jar and informixhq-agent.jar from Fix Central
- Stop InformixHQ server and InformixHQ agent
- Replace the existing informixhq-agent.jar and informixhq-server.jar files in the ${INFORMIXDIR}/hq directory with the new Informixhq-1.6.3 jar files in every affected installation.
- With these updates you can continue to use the InformixHQ startup scripts (InformixHQ.sh, InformixHQ.sh and InformixHQ.ksh) from $INFORMIXDIR/hq folder to start InformixHQ.
Get Notified about Future Security Bulletins
References
Change History
03 Feb 2022: 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.
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:
03 February 2022
UID
ibm16553622