Security Bulletin
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/Unix platforms 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, V11.1.4 FP6, and V11.5.5 FP1. 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 |
V9.7 | TBD | IT36404 | Special Build for V9.7 FP11: |
V10.1 | TBD | IT36403 | Special Build for V10.1 FP6: |
V10.5 | TBD | IT36402 | Special Build for V10.5 FP11: |
V11.1 | TBD | IT36400 | Special Build for V11.1.4 FP6: |
V11.5 | 11.5.6 | IT36279 | https://www.ibm.com/support/pages/node/6465915 |
Workarounds and Mitigations
None
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References
Acknowledgement
The vulnerability was reported to IBM by Hou JingYi (@hjy79425575) of Qihoo 360 CERT.
Change History
28 July 2021: Added 10.1 links
23 June 2021: Updated links for 11.5 to the 11.5.6 release.
22 Apr 2021: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
28 July 2021
UID
ibm16446219