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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2565
                     IBM MQ Appliance security updates
                               28 July 2020

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

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

Product:           IBM MQ Appliance
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Unknown/Unspecified   
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-4466 CVE-2020-2654 CVE-2018-14567
                   CVE-2017-18258 CVE-2017-15412 CVE-2015-8035

Reference:         ASB-2020.0028
                   ESB-2015.3240
                   ESB-2015.3214

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6252781
   https://www.ibm.com/support/pages/node/6252773
   https://www.ibm.com/support/pages/node/6252817

Comment: This bulletin contains three (3) IBM security advisories.

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

IBM MQ Appliance is vulnerable to a denial of service vulnerability
(CVE-2020-4466)

Security Bulletin

Summary

IBM MQ Appliance has resolved a denial of service vulnerability.

Vulnerability Details

CVEID: CVE-2020-4466
DESCRIPTION: IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop could allow a
remote authenticated attacker to cause a denial of service due to an error
within the Queue processing function.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
181563 for the current score.
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

+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|IBM MQ Appliance    |8.0       |
+--------------------+----------+
|IBM MQ Appliance    |9.1 LTS   |
+--------------------+----------+
|IBM MQ Appliance    |9.1 CD    |
+--------------------+----------+

Remediation/Fixes

IBM MQ Appliance 8.0

Apply fixpack 8.0.0.15 , or later.

IBM MQ Appliance V9.1 LTS

Apply FixPack 9.1.0.5 , or later.

IBM MQ Appliance V9.1 CD

Upgrade to IBM MQ 9.1.5 , or later.

Workarounds and Mitigations

None

- --------------------------------------------------------------------------------

IBM MQ Appliance is affected by multiple libxml2 vulnerabilities

Security Bulletin

Summary

IBM MQ Appliance has addressed multiple libxml2 vulnerabilities.

Vulnerability Details

CVEID: CVE-2015-8035
DESCRIPTION: libxml2 is vulnerable to a denial of service, caused by the
failure to properly detect compression errors by the xz_decomp function. By
using specially-crafted XML data, a local attacker could exploit this
vulnerability to cause the process to hang.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
107845 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-15412
DESCRIPTION: Google Chrome could allow a remote attacker to execute arbitrary
code on the system, caused by a use-after-free in libXML. By persuading a
victim to visit a specially-crafted website, a remote attacker could exploit
this vulnerability to execute arbitrary code on the system or cause a denial of
service.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
136046 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-18258
DESCRIPTION: libxml2 is vulnerable to a denial of service, caused by a flaw in
the xz_head function in xzlib.c. By persuading a victim to open a
specially-crafted file, a remote attacker could exploit this vulnerability to
cause a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
141432 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID: CVE-2018-14567
DESCRIPTION: libxml2 is vulnerable to a denial of service, caused by an error
in xzlib.c. By persuading a victim to open a specially-crafted file, a remote
attacker could exploit this vulnerability to cause the application to enter
into an infinite loop.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
148541 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Affected Products and Versions

+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|IBM MQ Appliance    |9.1 LTS   |
+--------------------+----------+
|IBM MQ Appliance    |9.1 CD    |
+--------------------+----------+

Remediation/Fixes

IBM MQ Appliance 9.1 LTS

Apply fixpack 9.1.0.6 , or later.

IBM MQ Appliance 9.1 CD

Apply IBM MQ Appliance 9.2 , or later.

Workarounds and Mitigations

None

- --------------------------------------------------------------------------------

IBM MQ Appliance is affected by a denial of service vulnerability
(CVE-2020-2654)

Security Bulletin

Summary

IBM MQ Appliance has resolved a denial of service vulnerability.

Vulnerability Details

CVEID: CVE-2020-2654
DESCRIPTION: An unspecified vulnerability in Java SE related to the Java SE
Libraries component could allow an unauthenticated attacker to cause a denial
of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
174601 for the current score.
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

+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|IBM MQ Appliance    |8.0       |
+--------------------+----------+
|IBM MQ Appliance    |9.1 LTS   |
+--------------------+----------+
|IBM MQ Appliance    |9.1 CD    |
+--------------------+----------+

Remediation/Fixes

IBM MQ Appliance V8

Apply FixPack 8.0.0.15 , or later.

IBM MQ Appliance V9.1 LTS

Apply FixPack 9.1.0.5 , or later.

IBM MQ Appliance V9.1 CD

Apply FixPack 9.1.5 , or later.

Workarounds and Mitigations

None

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

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