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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-20321 Detail

Description

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2013242 Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2013242 Issue Tracking  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List  Third Party Advisory 
https://lore.kernel.org/all/20211011134508.748956131%40linuxfoundation.org/
https://lore.kernel.org/all/20211011134508.748956131%40linuxfoundation.org/
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5096 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-20321
NVD Published Date:
02/18/2022
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.