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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.7232
            IBM Db2 is vulnerable to a denial of service when a
        specially crafted request is used via CLI. (CVE-2023-45178)
                              4 December 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Db2
Publisher:         IBM
Operating System:  Windows
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-45178  

Original Bulletin: 
   https://www.ibm.com/support/pages/node/7087207

Comment: CVSS (Max):  6.5 CVE-2023-45178 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
         CVSS Source: IBM
         Calculator:  https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin:  IBM Db2  is vulnerable to a denial of service when a
specially crafted request is used via CLI. (CVE-2023-45178)

Document Information

Document number    : 7087207
Modified date      : 01 December 2023
Product            : Db2 for Linux, UNIX and Windows
Component          : -
Software version   : 11.5
Operating system(s): Windows

Security Bulletin


Summary

IBM Db2 is vulnerable to a denial of service when a specially crafted request
is used via CLI.

Vulnerability Details

CVEID: CVE-2023-45178
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server)
CLI is vulnerable to a denial of service when a specially crafted request is
used.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
268073 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

+-------------------+----------+-------------------+
|Affected Product(s)|Version(s)|Applicable Editions|
+-------------------+----------+-------------------+
|IBM Db2            |11.5.x    |Client             |
+-------------------+----------+-------------------+

Windows platform is affected. Linux and Unix are not affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program, V11.5,
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
fixpack level for each impacted release: V11.5.8. They can be applied to any
affected fixpack level of the appropriate release to remediate this
vulnerability.

+-------+----------------+--------+-------------------------------------------+
|Release|Fixed in fix    |APAR    |Download URL                               |
|       |pack            |        |                                           |
+-------+----------------+--------+-------------------------------------------+
|V11.5  |TBD             |DT239599|Special Build for V11.5.8:                 |
|       |                |        |                                           |
|       |                |        |Windows 32-bit, x86                        |
|       |                |        |Windows 64-bit, x86                        |
|       |                |        |                                           |
|       |                |        |                                           |
|       |                |        |V11.5.9:                                   |
|       |                |        |https://www.ibm.com/support/pages/node/    |
|       |                |        |7071342                                    |
+-------+----------------+--------+-------------------------------------------+

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

01 Dec 2023: 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--------------------

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