CVE-2021-42574 An issue in the Bidirectional Algorithm in the Unicode Specification in Starwind Products
Title: CVE-2021-42574 An issue in the Bidirectional Algorithm in the Unicode Specification in Starwind Products
Note: StarWind will continue to update this vulnerability as new information becomes available
Vulnerability ID: SW-20220804-0002
Version: 1.0
Date: 2022-08-04
Status: Interim
CVEs: CVE-2021-42574
- Overview
- Affected Products
- Remediation
- Revision History
Summary
- DISPUTED ** An issue was discovered in the Bidirectional Algorithm in the Unicode Specification through 14.0. It permits the visual reordering of characters via control sequences, which can be used to craft source code that renders different logic than the logical ordering of tokens ingested by compilers and interpreters.
Impact
Adversaries can leverage this to encode source code for compilers accepting Unicode such that targeted vulnerabilities are introduced invisibly to human reviewers.
Vulnerability Scoring
| CVE | CVSS 2.0 Score | CVSS 3.x Score |
|---|---|---|
| CVE-2021-42574 | 5.1 (MEDIUM) | 8.3 (HIGH) |
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
References
| Resource | Hyperlink |
|---|---|
| NVD | NVD – CVE-2021-42574 (nist.gov) |
Affected Products:
StarWind VSAN Version V8 (build 14398)
Not affected products:
SAN&NAS (vSAN) V8 R13
StarWind VSAN for Hyper-V (all versions)
StarWind VSAN for vSphere (all versions)
StarWind SA (any setup)
StarWind VTLA (any setup)
StarWind VTL component (all versions)
StarWind V2V (all versions)
StarWind Tape Redirector component (all versions)
StarWind Deduplication Analyzer (all versions)
StarWind rPerf (all versions)
StarWind iSCSI Accelerator (all versions)
Software Versions and Fixes
StarWind VSAN Version V8 (build 14398
Workaround
Update StarWind SAN and NAS to the build v8 R13 or higher
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 for VSAN
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 | 2022-08-04 | Initial Public Release |