-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
IBM MQ RDQM and IBM MQ Appliance are vulnerable to a denial
of service attack (CVE-2018-1084)
14 May 2019
AusCERT Security Bulletin Summary
Product: IBM MQ
Operating System: Linux variants
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2018-1084
- --------------------------BEGIN INCLUDED TEXT--------------------
IBM MQ RDQM and IBM MQ Appliance are vulnerable to a denial of service attack
Product: IBM MQ
Software version: 184.108.40.206, 220.127.116.11, 18.104.22.168, 9.1.1, 9.1.2
Operating system(s): Linux
Software edition: Advanced
Reference #: 0879045
A denial of service vulnerability was discovered within the corosync library
which is used by the RDQM feature of IBM MQ and the high availability feature
of IBM MQ Appliance.
DESCRIPTION: Corosync is vulnerable to a denial of service, caused by an
integer overflow in exec/totemcrypto.c. By sending a specially-crafted packet,
a remote attacker could exploit this vulnerability to cause the application to
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
141586 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
IBM MQ and IBM MQ Appliance version 9.1 LTS
versions 22.214.171.124 - 126.96.36.199
IBM MQ and IBM MQ Appliance version 9.1 CD
versions 9.1.1 - 9.1.2
IBM MQversion 9.1 LTS
Apply ifix IT28745
IBM MQ version 9.1 CD
Apply ifix IT28745
IBM MQ Appliance version 9.1 LTS
Apply ifix IT28745 , or later maintenance.
IBM MQ Appliance version 9.1 CD
Apply ifix IT28745, or later maintenance
Workarounds and Mitigations
IBM MQ RDQM is only affected when configured in a high availability (HA) group.
In most cases the IBM MQ Appliance is not affected by this issue. The exception
is when you have a high availability configuration in which the two appliances
not directly connected (that is, they are remotely situated and connected by
a switch or similar).
10 May 2019: Original version published
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to email@example.com
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----