Security Bulletin: IBM MQ Appliance is affected by an OpenSSL vulnerability (CVE-2019-1559)

Summary

IBM MQ Appliance has addressed the following OpenSSL vulnerability.

Vulnerability Details

CVEID: CVE-2019-1559 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by the failure to immediately close the TCP connection after the hosts encounter a zero-length record with valid padding. An attacker could exploit this vulnerability using a 0-byte record padding-oracle attack to decrypt traffic.
CVSS Base Score: 5.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/157514&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N)

Affected Products and Versions

IBM MQ Appliance 8
Maintenance levels between 8.0.0.0 and 8.0.0.11

IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance levels between 9.1.0.0 and 9.1.0.2

IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Continuous delivery updates 9.1.1 and 9.1.2

Remediation/Fixes

IBM MQ Appliance 8
Apply fix pack 8.0.0.12, or later.

IBM MQ Appliance version 9.1 LTS

Apply fix pack 9.1.0.3, or later.

IBM MQ Appliance version 9.1 CD

Apply continuous delivery release 9.1.3, or later.

Workarounds and Mitigations

None