Security Bulletin
Summary
There is a vulnerability in the Curl open source library. Curl is used by IBM Cloud Private to transfer data . The vulnerability could allow a remote attacker to bypass security restrictions. This bulletin identifies the security fixes to apply to address the Curl vulnerability (CVE-2021-22926)
Vulnerability Details
CVEID: CVE-2021-22926
DESCRIPTION: Curl libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw in the CURLOPT_SSLCERT option mixup with TLS library Secure Transport. By creating a specially-crafted file name with the same name as the app wants to use by name, an attacker could exploit this vulnerability to trick the application to use the file based cert instead of the one referred to by name, and allow libcurl to send the wrong client certificate in the TLS connection handshake.
CVSS Base score: 9.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206320 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
IBM Cloud Private | 3.1.0 |
IBM Cloud Private | 3.1.1 |
IBM Cloud Private | 3.1.2 |
IBM Cloud Private | 3.2.0 |
IBM Cloud Private | 3.2.1 CD |
IBM Cloud Private | 3.2.2 CD |
Remediation/Fixes
- IBM Cloud Private 3.2.1
- IBM Cloud Private 3.2.2
For IBM Cloud Private 3.1.0, 3.1.1, 3.1.2, 3.2.0
- Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud Private 3.2.2.
- If required, individual product fixes can be made available between CD update packages for resolution of problems. Contact IBM support for assistance
Workarounds and Mitigations
None
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References
Change History
22 Apr 2022: 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:
20 May 2022
UID
ibm16588169