Security Bulletin: Multiple vulnerabilities in VMware affect IBM Cloud Pak System

Summary

Multiple vulnerabilities were found in VMware, a bundling product shipped with IBM Cloud Pak System. IBM Cloud Pak System addressed applicable CVEs.

Vulnerability Details

CVEID:CVE-2020-3982
**DESCRIPTION:**VMware ESXi, Workstation and Fusion are vulnerable to a denial of service, caused by an out-of-bounds write vulnerability due to a time-of-check time-of-use issue in ACPI device. An attacker could exploit this vulnerability to crash the virtual machine's vmx process or corrupt hypervisor's memory heap.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190040 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N)

CVEID:CVE-2020-3981
**DESCRIPTION:**VMware ESXi, Workstation and Fusion could allow a local attacker to obtain sensitive information, caused by an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. An attacker could exploit this vulnerability to leak memory from the vmx process.
CVSS Base score: 7.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190039 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

For unsupported versions the recommendation is to upgrade to supported version of the product.

Vulnerabilities identfied in VMware ESxI. Cloud Pak System shipped new ESxI image in response to CVE-2020-3982, CVE-2020-3981, including CVE-2020-3992.

For Cloud Pak System V2.3.0.1, V2.3.1.1, V2.3.2.0, V2.3.3.0, V2.3.3.1, V2.3.3.2,

Upgrade to Cloud Pak System v2.3.3.3 and apply V2.3.3.3 Interim Fix 01 at Fix Central.

For Cloud Pak System V2.3.3.3,

Apply Cloud Pak System V2.3.3.3 Interim Fix 01 at Fix Central.

information on upgrading available at <http://www.ibm.com/support/docview.wss?uid=ibm10887959&gt;

Workarounds and Mitigations

For OpenSLP as used in ESXi has a use-after-free issue (CVE-2020-3992) consult KB76372.