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             AUSCERT External Security Bulletin Redistribution

 IBM® Db2 is vulnerable to a Denial of Service on Windows (CVE-2020-4642)
                             23 December 2020


        AusCERT Security Bulletin Summary

Product:           IBM DB2
Publisher:         IBM
Operating System:  Windows
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-4642  

Original Bulletin: 

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IBM Db2 for Windows (includes Db2 Connect Server) could allow local attacker to 
cause a denial of service inside the "Db2 Management Service".

Vulnerability Details
CVEID:   CVE-2020-4642

DESCRIPTION:   IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
could allow local attacker to cause a denial of service inside the "DB2 Management

CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
185589 for the current score.

CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions
All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 on Windows are

Linux and Unix are not vulnerable.

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 FP5, and V11.5.5. They can be 
applied to any affected fixpack level of the appropriate release to remediate this

Release Fixed in fix pack APAR  Download URL
V9.7  TBD IT34317 Special Build for V9.7 FP11:
Windows 32-bit, x86
Windows 64-bit, x86

V10.1 TBD IT34316 Special Build for V10.1 FP6:
Windows 32-bit, x86
Windows 64-bit, x86

(Links will be updated as soon as they become available.)

V10.5 TBD IT34315 Special Build for V10.5 FP11:

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

V11.1 TBD IT34314 Special Build for V11.1 FP5:
Windows 32-bit, x86
Windows 64-bit, x86

V11.5 TBD IT34294 Special Build for V11.5.5:
Windows 32-bit, x86
Windows 64-bit, x86

Workarounds and Mitigations

This vulnerability was reported to IBM by Martin Rakhmanov

Change History
22 Dec 2020: Initial Publication

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