14 May 2019
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1690 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 Publisher: IBM Operating System: Linux variants Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-1084 Reference: ASB-2019.0059.2 ESB-2019.1089 ESB-2019.0545 ESB-2019.0513 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10879045 - --------------------------BEGIN INCLUDED TEXT-------------------- IBM MQ RDQM and IBM MQ Appliance are vulnerable to a denial of service attack (CVE-2018-1084) Product: IBM MQ Component: RDQM Software version: 188.8.131.52, 184.108.40.206, 220.127.116.11, 9.1.1, 9.1.2 Operating system(s): Linux Software edition: Advanced Reference #: 0879045 Security Bulletin Summary 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. Vulnerability Details CVEID: CVE-2018-1084 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 crash. 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 18.104.22.168 - 22.214.171.124 IBM MQ and IBM MQ Appliance version 9.1 CD versions 9.1.1 - 9.1.2 Remediation/Fixes 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 are not directly connected (that is, they are remotely situated and connected by means of a switch or similar). Change History 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. 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