Important

VMSA-2021-0026
7.5
2021-11-11
2021-11-11 (Initial Advisory)
CVE-2021-22101
VMware Tanzu Application Service for VMs updates address a denial-of-service vulnerability (CVE-2021-22101)

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1. Impacted Products

VMware Tanzu Application Service for VMs

2. Introduction

A denial-of-service vulnerability in one of the components of VMware Tanzu Application Service for VMs was observed. Patches and workarounds are available to remediate or workaround this vulnerability in affected VMware products.  

3a. VMware Tanzu Application service for VMs updates address a denial-of-service vulnerability (CVE-2021-22101)

Description

VMware Tanzu Application Service for VMs uses Cloud Controller (CAPI) from Cloud Foundry which is vulnerable to an unauthenticated denial-of-service(DoS) vulnerability. VMware has evaluated this issue to be 'Important' severity with a maximum CVSSv3 base score of 7.5.

Known Attack Vectors

 A remote attacker can leverage this vulnerability to cause denial of service by using REST HTTP requests and generating an enormous SQL query leading to database (ccdb) unavailability.

Resolution

To remediate CVE-2021-22101, apply the patches listed in the 'Fixed Version' column of the 'Resolution Matrix' found below.

Workarounds

None.

Additional Documentation

None.

Notes

None.

Acknowledgements

Response Matrix

Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation
VMware Tanzu Application Service for VMs
2.12.x
Any
CVE-2021-22101
7.5
important
2.12.1
None
None
VMware Tanzu Application Service for VMs
2.11.x
Any
CVE-2021-22101
7.5
important
2.11.8
None
None
VMware Tanzu Application Service for VMs
2.10.x
Any
CVE-2021-22101
7.5
important
2.10.20
None
None
VMware Tanzu Application Service for VMs
2.9.x
Any
CVE-2021-22101
7.5
important
2.9.28
None
None
VMware Tanzu Application Service for VMs
2.7.x
Any
CVE-2021-22101
7.5
important
2.7.40
None
None
4. References

Fixed Version(s) and Release Notes:

VMware Tanzu Application Service for VMs ( 2.12.1)

https://network.pivotal.io/products/elastic-runtime#/releases/977821

https://docs.pivotal.io/application-service/2-12/release-notes/runtime-rn.html

 

VMware Tanzu Application Service for VMs ( 2.11.8)

https://network.pivotal.io/products/elastic-runtime#/releases/976752

https://docs.pivotal.io/application-service/2-11/release-notes/runtime-rn.html

 

VMware Tanzu Application Service for VMs ( 2.10.20)

https://network.pivotal.io/products/elastic-runtime#/releases/979089

https://docs.pivotal.io/application-service/2-10/release-notes/runtime-rn.html

 

VMware Tanzu Application Service for VMs ( 2.9.28)

https://network.pivotal.io/products/elastic-runtime#/releases/978786

https://docs.pivotal.io/application-service/2-9/release-notes/runtime-rn.html

 

VMware Tanzu Application Service for VMs ( 2.7.40)

https://network.pivotal.io/products/elastic-runtime#/releases/978504

https://docs.pivotal.io/application-service/2-7/release-notes/runtime-rn.html


Additional Documentation:

https://www.cloudfoundry.org/blog/cve-2021-22101-cloud-controller-is-vulnerable-to-unauthenticated-denial-of-service/

 

Mitre CVE Dictionary Links:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2021-22101


FIRST CVSSv3 Calculator:

https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5. Change Log

11/11/2021: VMSA-2021-0026: Initial security advisory.

6. Contact

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