CVEvulnerability

CVE-2021-4037

4.4 MEDIUM Published 2022-08-24 Modified 2026-10-14 Official page ↗
Status
Modified
Published
2022-08-24
Last modified
2026-10-14
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.4 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-284

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.

Affected configurations

• linux linux kernel (< 5.11) • debian debian linux 10.0 • debian debian linux 11.0

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References