Security Bulletin
Summary
Multiple issues were identified with a version of libcurl which is shipped with IBM MQ. libcurl is used by IBM MQ to provide CCDTURL functionality.
Vulnerability Details
DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a required TLS bypassed issue. By sniffing the network, an attacker could exploit this vulnerability to obtain sensitive data in clear text over the network, 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/209452 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-2021-22947
DESCRIPTION: cURL libcurl is vulnerable to a man-in-the-middle attack, caused by a flaw when connecting to an IMAP, POP3, SMTP or FTP server to exchange data securely using STARTTLS to upgrade the connection to TLS level. An attacker could exploit this vulnerability to launch a man-in-the-middle attack and gain access to the communication channel between endpoints to obtain sensitive information or further compromise the system.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209453 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
IBM MQ | 9.1 LTS |
IBM MQ | 9.0 LTS |
IBM MQ | 9.2 CD |
IBM MQ | 9.1 CD |
IBM MQ | 9.2 LTS |
Remediation/Fixes
IBM MQ 9.0 LTS
IBM MQ 9.1 LTS
IBM MQ 9.2 LTS
IBM MQ 9.1 CD and 9.2 CD
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
16 Dec 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:
17 December 2021
UID
ibm16527796