Title: CVE-2021-1721 .NET Core Vulnerability in StarWind Products

Note: StarWind will continue to update this vulnerability as new information becomes available.

Vulnerability ID: SW-2021217-0001

Version: 1.0

Date: 2021-12-17

Status: Interim

CVEs: CVE-2021-1721

Summary

A denial-of-service vulnerability in .NET 5.0, 3.1, 2.1 exists when attacker trying to create HTTPS web request during X509 certificate chain building.

Impact 

A denial-of-service vulnerability exists when creating HTTPS web request during X509 certificate chain building.

Vulnerability Scoring

CVE CVSS 2.0 Score CVSS 3.x Score
CVE-2021-1721 4.3 (MEDIUM) 6.5 (MEDIUM)

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Resource Hyperlink
NVD https://nvd.nist.gov/vuln/detail/CVE-2021-1721

 

Affected Products: 

StarWind SAN&NAS build 1578

StarWind HCA and Command Center build 6864

Not affected products:

StarWind SAN&NAS build 1381

StarWind SAN&NAS build 1064

StarWind Command Center build 5871

StarWind Command Center build 5856

StarWind Command Center build 5650

StarWind Command Center build 4992

StarWind VSAN for Hyper-V (all versions)

StarWind VTL component (all versions for Windows Server)

StarWind V2V (all versions)

StarWind Tape Redirector component (all versions)

StarWind Deduplication Analyzer (all versions)

StarWind rPerf (all versions)

StarWind iSCSI Accelerator (all versions)

StarWind NVMe-oF Initiator (all versions)

Software Versions and Fixes

None. This section will be updated as patches are released.

Workaround

None.

Obtaining Software Fixes 

Software updates will be available in StarWind release notes – https://www.starwindsoftware.com/release-notes-build. To update the software, perform the steps described at the following link  – https://knowledgebase.starwindsoftware.com/guidance/upgrading-from-any-starwind-version-to-any-starwind-version/ or contact support to perform an update. You can submit a support request using the following link https://www.starwindsoftware.com/support-form or contact Support directly via email support@starwind.com or via phone +1 617 829 4499.

Status of Notice

Interim

StarWind will continue to update information regarding this vulnerability as new details become available.

This vulnerability article should be considered as the single source of current, up-to-date, authorized and accurate information posted by StarWind Software.

Revision History 

Revision # Date Comments
1.0 2021-12-17 Initial Public Release