Security Bulletin: Multiple Vulnerabilities in VMware ESXi affect IBM Cloud Pak System (CVE-2021-21994, CVE-2021-21995)

Summary

Vulnerabilties in VMware ESXi affect IBM Cloud Pak System. IBM Cloud Pak System has addressed these vulnerabilities.

Vulnerability Details

CVEID:CVE-2021-21994
**DESCRIPTION:**VMware ESXI could allow a remote attacker to bypass security restrictions, caused by improper authentication in SFCB. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass SFCB authentication.
CVSS Base score: 7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205287 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L)

CVEID:CVE-2021-21995
**DESCRIPTION:**VMware ESXI is vulnerable to a denial of service, caused by a heap out-of-bounds read in OpenSLP. A remote attacker with access to port 427 could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/205293 for the current score.
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

V2.3.0.1, V.2.3.1.1, v.2.3.2.0

IBM Cloud Pak System|

v2.3.3.0 v.2.3.3.1, v.2.3.3.2, v.2.3.3.3, v2.3.3.3 iFix 1

Remediation/Fixes

For unsupported or end of life release recommendation is to upgrade to uspported fixed release of the product.

In response to vulnerabilities found in VMware ESXi, Cloud Pak System provides new ESXi Image update to latest ESXi 6.7 EP 23 (build 19195723) that covers also CVE-2021-22045, along with Cloud Pak System 2.3.3.4.

For IBM Cloud Pak System V2.3.0.1, V.2.3.1.1, v.2.3.2.0, v2.3.3.0, v.2.3.3.1, v.2.3.3.2, v.2.3.3.3, v2.3.3.3 iFix 1

upgrade to IBM Cloud Pak System v2.3.3.4

Information on upgrading can be found here: http://www.ibm.com/support/docview.wss?uid=ibm10887959.

Workarounds and Mitigations

None.