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AUSCERT External Security Bulletin Redistribution
The Community Edition of IBM ILOG CPLEX Optimization Studio
is affected by a vulnerability in libcurl
21 November 2018
AusCERT Security Bulletin Summary
Product: IBM ILOG CPLEX Optimization Studio
Operating System: Windows
Impact/Access: Denial of Service -- Remote with User Interaction
CVE Names: CVE-2018-16840
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Security Bulletin: The Community Edition of IBM ILOG CPLEX Optimization Studio
is affected by a vulnerability in libcurl (CVE-2018-16840)
More support for: IBM ILOG CPLEX Optimization Studio
Software version: 12.8
Operating system(s): Windows
Software edition: Community Edition
Reference #: 0739961
Modified date: 19 November 2018
The Community Edition of IBM ILOG CPLEX Optimization Studio on Windows platform
only has addressed the following vulnerability: libcurl is vulnerable to a
denial of service.
DESCRIPTION: cURL is vulnerable to a denial of service, caused by a heap
use-after-free flaw in the Curl_close function. By sending a specially-crafted
request, a remote attacker could exploit this vulnerability to cause a denial
of service condition.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152299 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
Affected IBM ILOG CPLEX Optimization Studio Affected Versions
IBM ILOG CPLEX Optimization Studio 12.8
Please replace the initial DLL version 220.127.116.11 with the fixed version 18.104.22.168
available on Fix Central.
MD checksum: 04e1fe45fce57cd33a7b803230d06c35
For information, here is the path of the DLL:
Workarounds and Mitigations
There is no workaround or mitigation.
Complete CVSS v3 Guide
On-line Calculator v3
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
19 November 2018: 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.
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.
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