Security Bulletin
Summary
An issue was identified with OpenSSL which is shipped on IBM MQ for IBM i platforms and used within the Advanced Messaging Security component.
Vulnerability Details
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an integer overflow in CipherUpdate. By sending an overly long argument, an 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/196848 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 LTS |
Remediation/Fixes
IBM MQ Version 8
IBM MQ Version 9.0
Apply interim fix for SE74947 for 9.0.0.11
IBM MQ Version 9.1 LTS
IBM MQ Version 9.2 LTS
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
26 May 2021: 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:
22 June 2021
Initial Publish date:
26 May 2021
UID
ibm16456295