Security Bulletin: The Community Edition of IBM ILOG CPLEX Optimization Studio is affected by multiple vulnerabilities in libcurl (CVE-2022-42915, CVE-2022-42916, CVE-2022-32221)

Summary

The Community Edition of IBM ILOG CPLEX Optimization Studio on Windows platform only has addressed the following vulnerabilities.

Vulnerability Details

CVEID:CVE-2022-42915
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by a double-free flaw in the error/cleanup handling. By sending a specially-crafted CONNECT request, a remote attacker could exploit this vulnerability to cause HTTP proxy to refuse the request, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239060 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)

CVEID:CVE-2022-42916
**DESCRIPTION:**cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a HSTS bypass flaw . By sending a specially-crafted URL with ASCII counterparts as part of the IDN conversion in host name, an attacker could exploit this vulnerability to obtain sensitive information from clear-text HTTP transmission, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239061 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2022-32221
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw when using the read callback (CURLOPT_READFUNCTION) to ask for data to send. By sending a specially-crafted request, an attacker could exploit this vulnerability to send wrong data or doing a use-after-free is not present in libcurl code.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/239058 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L)

Affected Products and Versions

Remediation/Fixes

Please replace the initial DLL version with the fixed version 7.86.0 (or higher) available on the cURL download page.
sha256: 1175599e2c8a26fdfa981064367bfe8e07cb17457eb6027f640f5a6de2c7fd80

How to upgrade:

• locate the CPLEX binaries directory: %CPLEX_STUDIO_DIR%/cplex/bin/x64_win64 where %CPLEX_STUDIO_DIR% is the location where your CPLEX is installed.
• download the new libcurl.dll
• copy libcurl.dll to your CPLEX binaries directory (you might need administrative rights).

Workarounds and Mitigations

There is no workaround or mitigation