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AUSCERT External Security Bulletin Redistribution
ESB-2019.4785
Security Bulletin: Vulnerabilities in OpenSSL affect
WebSphere Message Broker
23 December 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Message Broker
Publisher: IBM
Operating System: AIX
Linux variants
Solaris
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0732
Reference: ESB-2019.2557
ESB-2019.2173
ESB-2019.1967
ESB-2019.1374
Original Bulletin:
https://www.ibm.com/support/pages/node/1150954
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Security Bulletin: Vulnerabilities in OpenSSL affect WebSphere Message Broker
Document Information
Product : WebSphere Message Broker
Component : -
Software version : V8
Operating system(s): AIX
Linux
Solaris
Windows
Edition : -
Summary
Vulnerabilities in OpenSSL affect WebSphere Message Broker
Vulnerability Details
CVEID: CVE-2018-0732
DESCRIPTION: During key agreement in a TLS handshake using a DH(E) based
ciphersuite a malicious server can send a very large prime value to the
client. This will cause the client to spend an unreasonably long period of
time generating a key for this prime resulting in a hang until the client has
finished. This could be exploited in a Denial Of Service attack. Fixed in
OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev
(Affected 1.0.2-1.0.2o).
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities
/144658 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
WebSphere Message Broker V8
Remediation/Fixes
+--------------------------+---------------------+--------+-----------------------------------------------+
|Product |VRMF |APAR |Remediation/Fixes |
+--------------------------+---------------------+--------+-----------------------------------------------+
|WebSphere Message Broker |V8.0.0.0 - V8.0.0.9 |IT29374 |Contact IBM support to request for Fix APAR |
+--------------------------+---------------------+--------+-----------------------------------------------+
Websphere Message Broker V8 is no longer in full support;IBM recommends
upgrading to a fixed, supported version/release/platform of the product.
If you are a customer with extended support and require a fix, contact IBM
support
Workarounds and Mitigations
None
Change History
17 Dec 2019: 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
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
Document Location
Worldwide
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