Security Bulletin: IBM MQ Appliance is affected by an information disclosure vulnerability (CVE-2018-20852)

Summary

IBM MQ Appliance has resolved an information disclosure vulnerability.

Vulnerability Details

CVEID:CVE-2018-20852
**DESCRIPTION:**Python could allow a remote attacker to obtain sensitive information, caused by the failure to correctly validate the domain by http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py. By using a server with a hostname that has another valid hostname as a suffix, an attacker could exploit this vulnerability to obtain leaked existing cookies.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/169515 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

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

Only applicable to IBM MQ Appliances configured in a High Availability group.