Title: CVE-2020-36385 Linux kernel before 5.10 has a use-after-free in StarWind products

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

Vulnerability ID: SW-20220802-0002

Version: 1.0

Date: 2022-08-03

Status: Interim

CVEs: CVE-2020-36385

Summary

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.

Impact 

A use-after-free.

Vulnerability Scoring

CVE CVSS 2.0 Score CVSS 3.x Score
CVE-2020-36385 6.8 (MEDIUM) 7.8 (HIGH)

Vector

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

References

Resource Hyperlink
NVD https://nvd.nist.gov/vuln/detail/CVE-2021-43527

 

Affected Products:

SAN&NAS (vSAN) V8 R13

StarWind VSAN Version V8 (build 14398)

Not affected products:

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

SAN&NAS (vSAN) V8 R13

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

Final for SAN&NAS

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 2022-08-02 Initial Public Release