Security Bulletin
Summary
IBM DB2 shipped with IBM Intelligent Operations Center. Information about a security vulnerability affecting IBM DB2 has been published in a security bulletin.
Vulnerability Details
CVEID: CVE-2023-29257
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to remote code execution as a database administrator of one database may execute code or read/write files from another database within the same instance. IBM X-Force ID: 252011.
CVSS Base score: 7.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252011 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2023-29255
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to a denial of service as it may trap when compiling a variation of an anonymous block. IBM X-Force ID: 251991.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/251991 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-2023-27555
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5 is vulnerable to a denial of service when attempting to use ACR client affinity for unfenced DRDA federation wrappers. IBM X-Force ID: 249187.
CVSS Base score: 5.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249187 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-26021
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 is vulnerable to a denial of service as the server may crash when compiling a specially crafted SQL query using a LIMIT clause. IBM X-Force ID: 247864.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/247864 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-2023-25930
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.1, 11.1, and 11.5 is vulnerable to a denial of service. Under rare conditions, setting a special register may cause the Db2 server to terminate abnormally. IBM X-Force ID: 247862.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/247862 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-26022
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to a denial of service as the server may crash when an Out of Memory occurs using the DBMS_OUTPUT module. IBM X-Force ID: 247868.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/247868 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2023-27559
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to a denial of service as the server may crash when using a specially crafted subquery. IBM X-Force ID: 249196.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249196 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| Intelligent Operations Center (IOC) | All |
Remediation/Fixes
Download the correct version of the fix from the following links as per your current installed DB2 version. Installation instructions for the fix are included in the document that is in the fix package.
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server may crash when using a specially crafted subquery. (CVE-2023-27559)
https://www.ibm.com/support/pages/node/6985667
Affected Db2 releases: V10.5, V11.1, V11.5
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server may crash when an Out of Memory occurs. (CVE-2023-26022)
https://www.ibm.com/support/pages/node/6985669
Affected Db2 releases: V10.5, V11.1, V11.5
Security Bulletin: IBM® Db2® is vulnerable to a denial of service. Under rare conditions, setting a special register may cause the Db2 server to terminate abnormally. (CVE-2023-25930)
https://www.ibm.com/support/pages/node/6985677
Affected Db2 releases: V10.5, V11.1, V11.5
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server may crash when compiling a specially crafted SQL query using a LIMIT clause. (CVE-2023-26021)
https://www.ibm.com/support/pages/node/6985611
Affected Db2 releases: V11.1, V11.5
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server may crash when when attempting to use ACR client affinity for unfenced DRDA federation wrappers. (CVE-2023-27555)
https://www.ibm.com/support/pages/node/6985683
Affected Db2 releases: V11.5
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as as it may trap when compiling a variation of an anonymous block. (CVE-2023-29255)
https://www.ibm.com/support/pages/node/6985687
Affected Db2 releases: V10.5, V11.1, V11.5
Security Bulletin: IBM® Db2® is vulnerable to remote code execution as a database administrator of one database may execute code or read/write files from another database within the same instance. (CVE-2023-29257)
https://www.ibm.com/support/pages/node/6985691
Affected Db2 releases: V10.5, V11.1, V11.5
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Accepted
Change History
25 May 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.
Document Location
Worldwide
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Document Information
Modified date:
30 May 2023
Initial Publish date:
25 May 2023
UID
ibm16999215