Security Bulletin: IBM® Db2® federated server is vulnerable to a denial of service when a specially crafted cursor is used. (CVE-2023-46167)

Summary

IBM® Db2® federated server is vulnerable to a denial of service when a specially crafted cursor is used.

Vulnerability Details

CVEID:CVE-2023-46167
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) federated server is vulnerable to a denial of service when a specially crafted cursor is used.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/269367 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

11.5.6 through 11.5.8

|

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 V11.5.9. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

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

V11.5.9:
<https://www.ibm.com/support/pages/node/7071342&gt;

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