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 (2)
Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2009704
Mailing List, Third Party Advisory x_refsource_misc
https://www.openwall.com/lists/oss-security/2021/10/14/3
Scores
CVSS v3
7.8
EPSS
0.0045
EPSS Percentile
35.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-281
Status
published
Products (2)
fedoraproject/fedora
34
linux/linux_kernel
< 5.17.0
Published
Apr 01, 2022
Tracked Since
Feb 18, 2026