Security Bulletin
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
| Affected Product(s) | Version(s) |
| IBM Cloud Pak System | V2.3 |
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
Workarounds and Mitigations
For OpenSLP as used in ESXi has a use-after-free issue (CVE-2020-3992) consult KB76372.
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References
Acknowledgement
Change History
14 July 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:
19 July 2021
Initial Publish date:
14 July 2021
UID
ibm16452221