Security Bulletin: IBM® Db2® could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. (CVE-2020-4739)

Summary

IBM DB2 on Windows could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Vulnerability Details

CVEID:CVE-2020-4739
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 188149.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188149 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Affected Products and Versions

All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on Windows are affected. Linux and Unix are not affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program 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: V9.7 FP11, V10.1 FP6, V10.5 FP11, 11.1 FP5, and V11.5.4. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

Windows 32-bit, x86
Windows 64-bit, x86

V10.1| TBD| IT34240| Special Build for V10.1 FP6:

Windows 32-bit, x86 [Link will be provided as soon as it becomes available]
Windows 64-bit, x86 [Link will be provided as soon as it becomes available]

V10.5| TBD| IT34239| Special Build for V10.5 FP11:

Windows 32-bit, x86
Windows 64-bit, x86

V11.1| v11.1.4FP6| IT34238|

Build for v11.1.4FP6:

<https://www.ibm.com/support/pages/node/6427871&gt;

V11.5| 11.5.5.0| IT34221| Special Build for V11.5.5:

Windows 32-bit, x86
Windows 64-bit, x86

Workarounds and Mitigations

None