Security Bulletin: IBM i2 Analyze and IBM i2 Analyst's Notebook Premium are affected by Apache Log4j Vulnerabilities (CVE-2021-45105 and CVE-2021-45046)

Summary

Apache Log4j is used by IBM i2 Analyze for general purpose and application error logging. It is also used in IBM i2 Analyst’s Notebook Premium when the chart store is deployed. This bulletin addresses the vulnerabilities for the reported CVE-2021-45105 and CVE-2021-45046. The below fix package includes Log4j 2.17.

Vulnerability Details

CVEID:CVE-2021-45105
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process. Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-45046
**DESCRIPTION:**Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading using the links shown below.**

**

NOTE: THESE FIXPACKS SUPERSEDE THE PREVIOUS FIXPACKS MENTIONED IN <https://www.ibm.com/support/pages/node/6526220&gt;

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=i2&product=ibm/Other+software/i2+Analysts+Notebook+Premium&release=All&platform=All&function=fixId&fixids=9.3.0.3-SEC-I2ANBP-Win-FP0003&includeSupersedes=0

i2 Analyze| 4.3.2.0| bundled with EIA 2.3.2.0|

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=i2&product=ibm/Other+software/i2+Enterprise+Insight+Analysis&release=All&platform=All&function=fixId&fixids=2.3.2.2-SEC-i2EIA-WinLinux-FP0002&includeSupersedes=0

i2 Analyze| 4.3.2.0| bundled with EIA 2.3.3.0|

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=i2&product=ibm/Other+software/i2+Enterprise+Insight+Analysis&release=All&platform=All&function=fixId&fixids=2.3.3.2-SEC-i2EIA-WinLinux-FP0002&includeSupersedes=0

i2 Connect| 1.0.2| shipped with i2 Analyze 4.3.2.0|

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=i2&product=ibm/Other+software/i2+Connect&release=All&platform=All&function=fixId&fixids=1.0.2.2-SEC-I2CONNECT-WinLinux-FP0002&includeSupersedes=0

Workarounds and Mitigations

None