Security Bulletin
Summary
An issue was identified within the Zlib library that affects IBM MQ. IBM MQ uses Zlib to perform message compression.
Vulnerability Details
DESCRIPTION: Zlib is vulnerable to a denial of service, caused by a memory corruption in the deflate operation. By using many distant matches, 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/222615 for the current score.
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
| Affected Product(s) | Version(s) |
| IBM MQ | 9.1 LTS |
| IBM MQ | 9.0 LTS |
| IBM MQ | 8.0 |
| IBM MQ | 9.2 CD |
| IBM MQ | 9.1 CD |
| IBM MQ | 9.2 LTS |
Remediation/Fixes
IBM MQ Version 8
Apply Cumulative Security Update 2 for IBM MQ Version 8.0.0.16
IBM MQ Version 9.0
IBM MQ Version 9.1 LTS
Apply interim fix for IT40513 on 9.1.0.11
IBM MQ Version 9.2 LTS
IBM MQ Version 9.1 CD and Version 9.2 CD
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
26 September 2022: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
27 September 2022
UID
ibm16823767