CVE-2021-3847

high

Description

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system.

References

https://www.openwall.com/lists/oss-security/2021/10/14/3

https://bugzilla.redhat.com/show_bug.cgi?id=2009704

Details

Source: Mitre, NVD

Published: 2022-04-01

Updated: 2022-04-11

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High