Description
A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5257
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4037
Issue Tracking, Permissions Required, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2004810
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2027239
Mailing List, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e
Mailing List, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848
Scores
CVSS v3
7.8
EPSS
0.0028
EPSS Percentile
19.6%
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-284
Status
published
Products (3)
debian/debian_linux
10.0
debian/debian_linux
11.0
linux/linux_kernel
< 5.11
Published
Aug 24, 2022
Tracked Since
Feb 18, 2026