ESB-2026.3798 PUBLISHED CVSS 4.800000190734863 MEDIUM

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3798 IBM Db2 is affected by a vulnerability in log4j-core-2.17.2 (CVE-2025-68161) 16 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Db2 Publisher: IBM Operating System: Linux Resolution: Patch/Upgrade CVE Names: CVE-2025-68161 Original Bulletin: https://www.ibm.com/support/pages/node/7269429 Comment: CVSS (Max): 4.8 CVE-2025-68161 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N) CVSS Source: IBM Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N EPSS (Max): 0.0% (10th) CVE-2025-68161 2026-04-15 - --------------------------BEGIN INCLUDED TEXT-------------------- IBM Support Document Information Document number : 7269429 Modified date : More support for: Db2 for Linux, UNIX and Windows Product : Db2 for Linux, UNIX and Windows Component : - Software version : 11.5.9, 12.1.x Operating system(s): Linux Linux on IBM Z Systems Security Bulletin Summary IBM Db2 is affected by a vulnerability in log4j-core-2.17.2 (CVE-2025-68161) Vulnerability Details CVEID: CVE-2025-68161 DESCRIPTION: The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even when the verifyHostName https://logging.apache.org/log4j/2.x/ manual/appenders/network.html#SslC... configuration attribute or the log4j2.sslVerifyHostName https://logging.apache.org/log4j/2.x/manual/ systemproperties.html#log4j... system property is set to true. This issue may allow a man-in-the-middle attacker to intercept or redirect log traffic under the following conditions: * The attacker is able to intercept or redirect network traffic between the client and the log receiver. * The attacker can present a server certificate issued by a certification authority trusted by the Socket Appender's configured trust store (or by the default Java trust store if no custom trust store is configured). Users are advised to upgrade to Apache Log4j Core version 2.25.3, which addresses this issue. As an alternative mitigation, the Socket Appender may be configured to use a private or restricted trust root to limit the set of trusted certificates. CWE: CWE-297: Improper Validation of Certificate with Host Mismatch CVSS Source: NVD CVSS Base score: 4.8 CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N) Affected Products and Versions +-------------------+---------------+-------------------+ |Affected Product(s)|Version(s) |Applicable Editions| +-------------------+---------------+-------------------+ |IBM Db2 |11.5.0 - 11.5.9|Server | +-------------------+---------------+-------------------+ |IBM Db2 |12.1.0 - 12.1.4|Server | +-------------------+---------------+-------------------+ Linux is affected. Unix and Windows are not affected. Earlier releases (11.1, 10.5, 10.1, 9.7 etc.) may also be affected, but they are no longer supported. Any older version not mentioned above is not supported. Remediation/Fixes Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent level for each impacted release: V11.5.9, and V12.1.4. They can be applied to any affected level of the appropriate release to remediate this vulnerability. +-------+------------+--------+-----------------------------------------------+ |Release|Fixed in mod|APAR |Download URL | | |pack | | | +-------+------------+--------+-----------------------------------------------+ |V11.5 |TBD |DT459588|Special Build #79671 or later for V11.5.9 | | | | |available at this link: | | | | |https://www.ibm.com/support/pages/node/7087189 | +-------+------------+--------+-----------------------------------------------+ | | | |Special Build #80714 or later for V12.1.4 | |V12.1 |TBD |DT459588|available at this link: | | | | |https://www.ibm.com/support/pages/node/7267513 | +-------+------------+--------+-----------------------------------------------+ IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability. Workarounds and Mitigations None Published Security Vulnerabilities for DB2 for Linux, UNIX, and Windows including Special Build information Acknowledgement Change History 15 Apr 2026: 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 According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions. - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. 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Risk Scores

CVSS v3.1
4.800000190734863
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Products

VendorProductVersions
IBMDb2

Timeline

References

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