IBM Support

Security Bulletin: IBM MQ Appliance is affected by OpenSSL vulnerabilities (CVE-2018-0732 and CVE-2018-0739)

Created by Adrian Dick on
Published URL:
https://www.ibm.com/support/pages/node/792537
792537

Security Bulletin


Summary

IBM MQ Appliance has addressed the following OpenSSL vulnerabilities.

Vulnerability Details

CVEID: CVE-2018-0732
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by sending a very large prime value to the client by a malicious server during key agreement in a TLS handshake. By spending an unreasonably long period of time generating a key for this prime, a remote attacker could exploit this vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/144658 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-0739
DESCRIPTION: OpenSSL is vulnerable to a denial of service. By sending specially crafted ASN.1 data with a recursive definition, a remote attacker could exploit this vulnerability to consume excessive stack memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/140847 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance levels between 9.1.0.0 and 9.1.0.1

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

Remediation/Fixes

IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Apply  iFix IT27359 , or later.

IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Apply  iFix IT27359 , or later.

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

Change History

14 Feb 2019 : Original version published

*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.

Internal Use Only

PSIRT advisory 13963
PSIRT product record 128516

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Document Information

Modified date:
25 March 2019

UID

ibm10792537

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