Security Bulletin
Summary
There are multiple vulnerabilities in Apache Log4j (CVE-2021-44228 and CVE-2021-45046) as described in the vulnerability details section. Apache Log4j is used by Db2 Web Query for i for generating logs and diagnostic traces in some of its components. IBM has addressed the vulnerability in Db2 Web Query for i.
Vulnerability Details
CVEID: CVE-2021-44228
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the failure to protect against attacker controlled LDAP and other JNDI related endpoints by JNDI features. By sending a specially crafted code string, an attacker could exploit this vulnerability to load arbitrary Java code on the server and take complete control of the system.
Note: The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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
Affected Product(s) | Version(s) |
IBM Db2 Web Query for i | 2.3.0 |
IBM Db2 Web Query for i | 2.2.1 |
Remediation/Fixes
It is strongly recommended that you apply the fix.
The issues can be fixed by applying a Group Program Temporary Fix (PTF) for Db2 Web Query for i.
Db2 Web Query for i releases 2.3.0 and 2.2.1 are impacted and will be fixed.
The Db2 Web Query for i group PTF contains the fix for the CVE. The group PTF numbers for each IBM i release and minimum group levels that contain the fix are:
IBM Db2 Web Query |
IBM i 7.4 |
IBM i 7.3 |
IBM i 7.2 |
IBM i 7.1 |
2.3.0 |
SF99654 Level 3 |
SF99533 Level 3 |
N/A |
N/A |
2.2.1 |
SF99653 Level 11 |
SF99433 Level 11 |
SF99434 Level 11 |
SF99435 Level 11 |
Group Program Temporary Fixes (PTFs) can be downloaded from https://www.ibm.com/support/fixcentral/.
Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.
Workarounds and Mitigations
None
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References
Change History
21 Dec 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.
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:
21 December 2021
UID
ibm16529238