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             AUSCERT External Security Bulletin Redistribution

                              ESB-2019.2358.3
        Security Bulletin: Under specialized conditions, IBM Db2 is
              vulnerable to denial of service (CVE-2019-4101)
                               26 July 2019

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

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

Product:           IBM DB2 for Linux, UNIX and Windows
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4101  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10880741

Revision History:  July 26 2019: Added links for repackaged V11.1 and V10.1 
                                 images. Remaining links for V10.5 platforms 
                                 will be added as soon as the repackaged images 
                                 are available.
                   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: Under specialized conditions, IBM(R) Db2(R) is vulnerable to
denial of service (CVE-2019-4101).

Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 10.1, 10.5, 11.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Reference #: 0880741

Modified date: 24 July 2019

Summary

Db2 is vulnerable to a denial of service. Users that have both EXECUTE on
PD_GET_DIAG_HIST and access to the diagnostic directory on the DB2 server can
cause the instance to crash.

Vulnerability Details

CVEID: CVE-2019-4101
DESCRIPTION: DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) is
vulnerable to a denial of service. Users that have both EXECUTE on
PD_GET_DIAG_HIST and access to the diagnostic directory on the DB2 server can
cause the instance to crash.
CVSS Base Score: 6.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
158091 for the current score
CVSS Environmental Score*: Undefined
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 V10.1, V10.5, and V11.1 editions on all
platforms are affected. Db2 V9.7 is 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, V10.1,
V10.5, and 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: V10.1 FP6, V10.5 FP10
and 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  |          |                                                                    |
+---------------+----------+----------+--------------------------------------------------------------------+
|V10.1          |TBD       |IT28254   |Special Build for V10.1 FP6:                                        |
|               |          |          |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |          |HP-UX 64-bit                                                        |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |          |Linux 64-bit, x86-64                                                |
|               |          |          |Linux 64-bit, POWER(TM) big endian                                  |
|               |          |          |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Solaris 64-bit, x86-64                                              |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
+---------------+----------+----------+--------------------------------------------------------------------+
|V10.5          |TBD       |IT28251   |Special Build for V10.5 FP10:                                       |
|               |          |          |                                                                    |
|               |          |          |AIX 64-bit                                                          |
|               |          |          |HP-UX 64-bit                                                        |
|               |          |          |Linux 32-bit, x86-32                                                |
|               |          |          |Linux 64-bit, x86-64                                                |
|               |          |          |Linux 64-bit, POWER(TM) big endian                                  |
|               |          |          |Linux 64-bit, POWER(TM) little endian                               |
|               |          |          |Linux 64-bit, System z(R), System z9(R) or zSeries(R)               |
|               |          |          |Solaris 64-bit, SPARC                                               |
|               |          |          |Solaris 64-bit, x86-64                                              |
|               |          |          |Windows 32-bit, x86                                                 |
|               |          |          |Windows 64-bit, x86                                                 |
|               |          |          |Inspur                                                              |
+---------------+----------+----------+--------------------------------------------------------------------+
|V11.1          |TBD       |IT28255   |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 and V10.1 images. Remaining
links for V10.5 platforms will be added as soon as the repackaged images are
available.

*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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