A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.

May 17th, 2023

**Linux Kernel ksmbd Tree Connection Race Condition Remote Code Execution Vulnerability****ZDI-23-702  
ZDI-CAN-20592**

CVE ID

CVE-2023-32254

CVSS SCORE

9.8, (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

AFFECTED VENDORS

Linux  

AFFECTED PRODUCTS

Kernel  

VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.

The specific flaw exists within the processing of SMB2\_TREE\_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.  

ADDITIONAL DETAILS

Linux has issued an update to correct this vulnerability. More details can be found at:  
https://github.com/torvalds/linux/commit/30210947a343b6b3ca13adc9bfc88e1543e16dd5  

DISCLOSURE TIMELINE

*   2023-04-27 - Vulnerability reported to vendor
*   2023-05-17 - Coordinated public release of advisory

CREDIT

Quentin Minster (@thalium\_team)  

BACK TO ADVISORIES

CVE-2023-32254: ZDI-23-702


IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables.  IBM X-Force ID:  253357.

CVE-2023-30445: IBM Db2 denial of service CVE-2023-30445 Vulnerability Report

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to an information disclosure due to improper privilege management when certain federation features are used.  IBM X-Force ID:  252046.

  

**Summary**

IBM® Db2® is vulnerable to an information disclosure due to improper privilege management when certain federation features are used.

**Vulnerability Details**

**CVEID:**   CVE-2023-29256  
**DESCRIPTION:**   IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to an information disclosure due to improper privilege management when certain federation features are used.  
CVSS Base score: 5.3  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252046 for the current score.  
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)

**Affected Products and Versions**

Affected Product(s)

Version(s)

Applicable Editions

IBM® Db2®

10.5.0.11

Server

IBM® Db2®

11.1.4.7

Server

IBM® Db2®

11.5.x

Server

All platforms are affected.

**Remediation/Fixes**

Customers running any vulnerable fixpack level of an affected Program,  V10.5, V11.1 and 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:  V10.5 FP11, V11.1.4 FP7, V11.5.7 and V11.5.8. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

**Release**

**Fixed in fix pack**

**APAR**

**Download URL**

V10.5

TBD

DT208397

Special Build for V10.5 FP11:

AIX 64-bit  
HP-UX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ big endian  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Solaris 64-bit, x86-64  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.1

TBD

DT208397

Special Build for V11.1.4 FP7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.5

TBD

DT208397

Special Build for V11.5.7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

Special Build for V11.5.8:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

  

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

**References**

Off

**Acknowledgement**

**Change History**

07 Jul 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

\[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","Platform":\[{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"},{"code":"PF027","label":"Solaris"},{"code":"PF010","label":"HP-UX"},{"code":"PF002","label":"AIX"}\],"Version":"11.5,11.1,10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}\]

CVE-2023-29256: IBM® Db2® is vulnerable to information disclosure due to improper privilege management when certain federation features are used. (CVE-2023-29256)

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 db2set is vulnerable to a buffer overflow, caused by improper bounds checking.  An attacker could overflow the buffer and execute arbitrary code.  IBM X-Force ID:  252184.

  

**Summary**

IBM® Db2® db2set is vulnerable to arbitrary code execution.

**Vulnerability Details**

**CVEID:**   CVE-2023-30431  
**DESCRIPTION:**   IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) db2set is vulnerable to a buffer overflow, caused by improper bounds checking. An attacker could overflow the buffer and execute arbitrary code.  
CVSS Base score: 8.4  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252184 for the current score.  
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

**Affected Products and Versions**

Affected Product(s)

Version(s)

Applicable Editions

IBM® Db2®

10.5.0.11

Server

IBM® Db2®

11.1.4.7

Server

IBM® Db2®

11.5.x

Server

All platforms are affected.

**Remediation/Fixes**

Customers running any vulnerable fixpack level of an affected Program,  V10.5, v11.1 and 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:  V10.5 FP11, V11.1.4 FP7, and V11.5.8. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

**Release**

**Fixed in fix pack**

**APAR**

**Download URL**

V10.5

TBD

DT198274

Special Build for V10.5 FP11:

AIX 64-bit  
HP-UX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ big endian  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Solaris 64-bit, x86-64  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.1

TBD

DT198274

Special Build for V11.1.4 FP7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.5

TBD

DT198274

Special Build for V11.5.7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

Special Build for V11.5.8:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

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

**References**

Off

**Acknowledgement**

**Change History**

07 Jul 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

\[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","Platform":\[{"code":"PF033","label":"Windows"},{"code":"PF010","label":"HP-UX"},{"code":"PF027","label":"Solaris"},{"code":"PF016","label":"Linux"},{"code":"PF002","label":"AIX"}\],"Version":"11.5,11.1,10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}\]

CVE-2023-30431: IBM® Db2® db2set is vulnerable to arbitrary code execution. (CVE-2023-30431)

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 federated server is vulnerable to a denial of service as the server may crash when using a specially crafted wrapper using certain options.  IBM X-Force ID:  253202.

  

**Summary**

IBM® Db2® federated server is vulnerable to a denial of service as the server may crash when using a specially crafted wrapper using certain options.

**Vulnerability Details**

**CVEID:**   CVE-2023-30442  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) federated server is vulnerable to a denial of service as the server may crash when using a specially crafted wrapper using certain options.  
CVSS Base score: 5.9  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253202 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)

**Affected Products and Versions**

Affected Product(s)

Version(s)

Applicable Editions

IBM® Db2®

11.1.4.7

Server

IBM® Db2®

11.5.x

Server

All platforms are affected.

**Remediation/Fixes**

Customers running any vulnerable fixpack level of an affected Program, V11.1 and 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:  V11.1.4 FP7, and V11.5.8. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

**Release**

**Fixed in fix pack**

**APAR**

**Download URL**

V11.1

TBD

DT187940

Special Build for V11.1.4 FP7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.5

TBD

DT187940

Special Build for V11.5.7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

Special Build for V11.5.8:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

  

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

**References**

Off

**Acknowledgement**

**Change History**

07 Jul 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

\[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","Platform":\[{"code":"PF010","label":"HP-UX"},{"code":"PF033","label":"Windows"},{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"}\],"Version":"11.5,11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}\]

CVE-2023-30442: IBM® Db2® federated server is vulnerable to a denial of service when using a specially crafted wrapper using certain options. (CVE-2023-30442)

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 is vulnerable to insufficient audit logging.  IBM X-Force ID:  245918.

CVE-2023-23487: IBM Db2 audit logging CVE-2023-23487 Vulnerability Report


IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query.  IBM X-Force ID:  253439.

CVE-2023-30449: IBM Db2 denial of service CVE-2023-30449 Vulnerability Report


IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables.  IBM X-Force ID:  253437.

CVE-2023-30448: IBM Db2 denial of service CVE-2023-30448 Vulnerability Report

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables.  IBM X-Force ID:  253436.

CVE-2023-30447: IBM Db2 denial of service CVE-2023-30447 Vulnerability Report

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables.  IBM X-Force ID:  

253361

.

**Security Bulletin**

  

**Summary**

IBM® Db2® has multiple denial of service vulnerabilities with a specially crafted query

**Vulnerability Details**

**CVEID:**   CVE-2023-30447  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query on certain tables.  
CVSS Base score: 5.9  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253436 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-2023-30446  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query on certain tables.  
CVSS Base score: 5.9  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253361 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-2023-30443  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query.  
CVSS Base score: 7.5  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253205 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-2023-30448  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query on certain tables.  
CVSS Base score: 5.9  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253437 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-2023-30445  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query on certain tables.  
CVSS Base score: 7.5  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253357 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-2023-30449  
**DESCRIPTION:**   IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to denial of service with a specially crafted query.  
CVSS Base score: 7.5  
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253439 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)

**Affected Products and Versions**

Affected Product(s)

Version(s)

Applicable Editions

IBM® Db2®

10.5.0.11

Server

IBM® Db2®

11.1.4.7

Server

IBM® Db2®

11.5.x

Server

All platforms are affected.

**Remediation/Fixes**

Customers running any vulnerable fixpack level of an affected Program,  V10.5, V11.1 and 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:  V10.5 FP11, V11.1.4 FP7, V11.5.7 and V11.5.8. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

**Release**

**Fixed in fix pack**

**APAR**

**Download URL**

V10.5

TBD

DT173255

DT173447

DT173793

DT174584

DT188352

DT203400

Special Build for V10.5 FP11:

AIX 64-bit  
HP-UX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ big endian  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Solaris 64-bit, x86-64  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.1

TBD

DT173255

DT173447

DT173793

DT174584

DT188352

DT203400

Special Build for V11.1.4 FP7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Solaris 64-bit, SPARC  
Windows 32-bit, x86  
Windows 64-bit, x86

V11.5

TBD

DT173255

DT173447

DT173793

DT174584

DT188352

DT203400

Special Build for V11.5.7:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

Special Build for V11.5.8:

AIX 64-bit  
Linux 32-bit, x86-32  
Linux 64-bit, x86-64  
Linux 64-bit, POWER™ little endian  
Linux 64-bit, System z®, System z9® or zSeries®  
Windows 32-bit, x86  
Windows 64-bit, x86

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

**References**

Off

**Acknowledgement**

**Change History**

07 Jul 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

\[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","Platform":\[{"code":"PF033","label":"Windows"},{"code":"PF016","label":"Linux"},{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF027","label":"Solaris"}\],"Version":"11.5,11.1,10.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}\]

Tag

#linux