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.
Published: 2022-02-18
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2843-1 linux security update
Debian DLA Debian DLA DLA-2941-1 linux-4.19 security update
Debian DSA Debian DSA DSA-5096-1 linux security update
EUVD EUVD EUVD-2021-7745 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.
Ubuntu USN Ubuntu USN USN-5208-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5209-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5210-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5218-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6221-1 Linux kernel vulnerabilities
History

No history.

Subscriptions

Debian Debian Linux
Linux Linux Kernel
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:37:23.681Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20321

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-18T18:15:08.947

Modified: 2024-11-21T05:46:22.433

Link: CVE-2021-20321

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-10-11T09:00:00Z

Links: CVE-2021-20321 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses