Security Bulletin: IBM Db2 High Performance Unload is affected by - Buffer Overflow in --credential keystore vulnerability

Created by Yuan Li on Mon, 09/09/2019 - 03:28
Published URL:

Security Bulletin


IBM Db2 High Performance Unload has addressed the following vulnerability:Buffer Overflow in --credential keystore

Vulnerability Details

CVEID: CVE-2019-4523
DESCRIPTION: IBM DB2 High Performance Unload is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges.
CVSS Base Score: 8.4
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
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

Db2 High Performance Unload load for LUW  6.5

Db2 High Performance Unload load for LUW  6.1


Product VRMF Remediation/First Fix
InfoSphere Optim High Performance Unload for DB2 for Linux- UNIX and Windows Had been fixed in Interim Fix IF1) Management&product=ibm/Information+Management/Optim+High+Performance+Unload+for+DB2+Linux+UNIX+and+Windows&release=6.5&platform=All&function=all
InfoSphere Optim High Performance Unload for DB2 for Linux- UNIX and Windows Had been fixed in Interim Fix IF6)

Workarounds and Mitigations


Get Notified about Future Security Bulletins




The vulnerability was reported to IBM by Rich Mirch

*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.


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.

Document Location


[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSC6UE","label":"Optim High Performance Unload for DB2 for Linux, UNIX and Windows"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"6.1,6.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
10 December 2019