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             AUSCERT External Security Bulletin Redistribution

                              ESB-2019.2363.3
           Security Bulletin: IBM Db2 is vulnerable to denial of
                          service (CVE-2019-4386)
                               26 July 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM DB2 for Linux, UNIX and Windows
Publisher:         IBM
Operating System:  AIX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4386  

Original Bulletin: 
   https://www-01.ibm.com/support/docview.wss?uid=ibm10886809

Revision History:  July 26 2019: Added links for repackaged V11.1 images.
                   July 19 2019: The images on Unix-type platforms need to be 
                                 repackaged due to problem with db2iupdt tool. 
                                 Disabled links until the new repackaged image 
                                 is available.
                   June 28 2019: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: IBM(R) Db2(R) is vulnerable to denial of service
(CVE-2019-4386).

Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 11.1

Operating system(s): AIX, Linux, Solaris, Windows

Reference #: 0886809

Modified date: 24 July 2019

Summary

Db2 is vulnerable to a denial of service. Db2 could allow an authenticated
user to execute a function that would cause the server to crash.

Vulnerability Details

CVEID:  CVE-2019-4386
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server)
could allow an authenticated user to execute a function that would cause the
server to crash.
CVSS Base Score: 6.5
CVSS Temporal Score: See  https://exchange.xforce.ibmcloud.com/vulnerabilities
/162174 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Db2 11.1.4.4 and up on all platforms are affected. Db2 11.1.3.3 iFix 002 and
earlier, Db2 10.5, Db2 10.1, and Db2 9.7 are not affected.

Remediation/Fixes

The recommended solution is to apply the appropriate fix for this
vulnerability.

FIX:

Customers running any vulnerable fixpack level of an affected Program, V11.1,
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: V11.1.4.4 iFix001. They can be
applied to any affected fixpack level of the appropriate release to remediate
this vulnerability.

 
+---------------+----------+----------+--------------------------------------------------------------------+
|Release        |Fixed in  |APAR      |Download URL                                                        |
|               |fix pack  |          |                                                                    |
+---------------+----------+----------+--------------------------------------------------------------------+
|V11.1          |TBD       |IT29350   |Special Build for V11.1.4.4 iFix001:                                |
|               |          |          |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |          |Linux 64-bit, x86-64                                                |
|               |          |          |Linux 64-bit, POWER(TM) little endian                               |
|               |          |          |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
+---------------+----------+----------+--------------------------------------------------------------------+

Workarounds and Mitigations

None.


Change History

June 27, 2019: Original Version Published.
July 18, 2019: The images on Unix-type platforms need to be repackaged due to
problem with db2iupdt tool. Disabled links until the new repackaged images are
available.
July 24, 2019: Added links for repackaged V11.1 images.

*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

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.

- --------------------------END INCLUDED TEXT--------------------

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