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Security Bulletin: IBM MQ Appliance is affected by an OpenSSL vulnerability (CVE-2021-3449)

Security Bulletin


Summary

IBM MQ Appliance has resolved an OpenSSL vulnerability.

Vulnerability Details

CVEID:   CVE-2021-3449
DESCRIPTION:   OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signature_algorithms processing. By sending a specially crafted renegotiation ClientHello message from a client, a remote attacker could exploit this vulnerability to cause the TLS server to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198752 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 Appliance 9.2 CD
IBM MQ Appliance 9.2 LTS

Remediation/Fixes

This vulnerability is addressed under APAR IT37117.
IBM MQ Appliance version 9.2 LTS
IBM MQ Appliance version 9.2 CD

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

Change History

09 Jun 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:
30 June 2021

UID

ibm16463293

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