Security Bulletin
Summary
Vulnerability in OpenSSL library affects OS Pattern Kit used in IBM Cloud Pak System. IBM Cloud Pak System has addressed the vulnerability.
Vulnerability Details
CVEID: CVE-2020-1967
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference. By passing specially crafted data to the SSL_check_chain() function during or after a TLS 1.3 handshake, a remote attacker could exploit this vulnerability to cause server or client applications to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180181 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)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Cloud Pak System | v2.3.0.1, v.2.3.1.1, v2.3.2.0 |
Remediation/Fixes
For IBM Cloud Pak System v2.3.0.1, v.2.3.1.1, v2.3.2.0
Upgrade to IBM Cloud Pak System v2.3.3.0. CVE-2020-1967 may impact Openssl on Windows. Openssl 1.1.1g is added to 2.3.3.0 OS pattern kit for Windows. For earlier versions see Reference.
Information on upgrading can be found here: http://www.ibm.com/support/docview.wss?uid=ibm10887959.
Workarounds and Mitigations
None
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References
Change History
11 Sep 2020: 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:
11 September 2020
UID
ibm16330581