ESB-2018.2804 - [Win][UNIX/Linux] IBM DB2: Multiple vulnerabilities 2018-09-21

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2804
     Vulnerabilities in GSKit affect IBM Spectrum Scale used by DB2(R)
pureScale(TM) (CVE-2018-1431, CVE-2018-1447, CVE-2017-3732, CVE-2016-0705)
                             21 September 2018

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

Product:           IBM DB2
Publisher:         IBM
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Administrator Compromise -- Existing Account      
                   Access Privileged Data   -- Remote/Unauthenticated
                   Modify Arbitrary Files   -- Existing Account      
                   Denial of Service        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1447 CVE-2018-1431 CVE-2017-3732
                   CVE-2016-0705  

Reference:         ASB-2018.0019
                   ASB-2018.0013
                   ESB-2017.2523
                   ESB-2017.1934
                   ESB-2017.1815

Original Bulletin: 
   https://www.ibm.com/support/docview.wss?uid=ibm10731657

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Security Bulletin: Vulnerabilities in GSKit affect IBM Spectrum Scale used by
DB2(R) pureScale(TM) (CVE-2018-1431, CVE-2018-1447, CVE-2017-3732, CVE-2016-0705)

Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 10.5, 11.1

Operating system(s): AIX, Linux

Software edition: Advanced Enterprise Server, Advanced Workgroup Server,
Enterprise Server, Express, Express-C, Person

Reference #: 0731657

Modified date: 19 September 2018

Security Bulletin

Summary

DB2 LUW is affected by a vulnerability in IBM(R) Spectrum Scale Version V4.2 and
V4.1 that is used by DB2(R) pureScale(TM) Feature on AIX and Linux. IBM Spectrum
Scale is previously known as General Parallel File System (GPFS).

Vulnerability Details

CVEID: CVE-2018-1431
DESCRIPTION: A vulnerability in GSKit affects IBM Spectrum Scale that could
allow a local attacker to obtain control of the Spectrum Scale daemon and to
access and modify files in the Spectrum Scale file system, and possibly to
obtain administrator privileges on the node.
CVSS Base Score: 7.4
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139240 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2018-1447
DESCRIPTION: The GSKit CMS KDB logic fails to salt the hash function resulting
in weaker than expected protection of passwords. A weak password may be
recovered. Note: After update the customer should change password to ensure the
new password is stored more securely. Products should encourage customers to
take this step as a high priority action.
CVSS Base Score: 5.1
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/139972 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2017-3732
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by a carry propagating bug in the x86_64 Montgomery
squaring procedure. An attacker could exploit this vulnerability to obtain
information about the private key.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/121313 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0705
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a
double-free error when parsing DSA private keys. An attacker could exploit this
vulnerability to corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/111140 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

All fix pack levels of IBM Db2 V10.5, and V11.1 editions on all Unix-type
platforms are affected. Windows platforms are not affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program, V10.5
and V11.1, can contact IBM technical support to obtain the Spectrum Scale
security package update. Before installing the Spectrum Scale security package,
the DB2 level might need to be upgraded to the level that includes the
supported Spectrum Scale level. Do not attempt to upgrade Spectrum Scale by any
other means. The table below lists the DB2 releases and the Spectrum Scale
security package to request from IBM technical support.

+--------------------------------------+--------------------------------------+
|DB2 Release                           |Obtain following from IBM technical   |
|                                      |support:                              |
+--------------------------------------+--------------------------------------+
|10.5 AIX 64-bit                       |U881200.gpfs.gskit.bff                |
+--------------------------------------+--------------------------------------+
|10.5 Linux 64-bit, x86-64             |gpfs.gskit-8.0.50-86.x86_64.rpm       |
+--------------------------------------+--------------------------------------+
|10.5 Linux 64-bit, POWER(TM) little   |gpfs.gskit-8.0.50-86.ppc64le.rpm      |
|endian                                |                                      |
+--------------------------------------+--------------------------------------+
|11.1 AIX 64-bit                       |U881200.gpfs.gskit.bff                |
+--------------------------------------+--------------------------------------+
|11.1 Linux 64-bit, x86-64             |gpfs.gskit-8.0.50-86.x86_64.rpm       |
+--------------------------------------+--------------------------------------+
|11.1 Linux 64-bit, POWER(TM) little   |gpfs.gskit-8.0.50-86.ppc64le.rpm      |
|endian                                |                                      |
+--------------------------------------+--------------------------------------+

The Spectrum Scale security package upgrade instructions are available here:
https://www-01.ibm.com/support/docview.wss?uid=ibm10731637

Workarounds and Mitigations

None.

Change History

September 18, 2018: Original version published.

*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.

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