CVE-2021-20321medium
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.
References
https://bugzilla.redhat.com/show_bug.cgi?id=2013242
https://lore.kernel.org/all/[email protected]/
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
Details
Source: MITRE
Published: 2022-02-18
Updated: 2022-05-11
Type: CWE-362
Risk Information
CVSS v2
Base Score: 4.7
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3
Base Score: 4.7
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1
Severity: MEDIUM