VULNERABILITY INTELLIGENCE

CVE-2021-4037

CVSS score4.4 MEDIUM
EPSS probability0.34%
CISA KEVNot currently listed
Published2022-08-24
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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.

Weakness classification

  • secalert@redhat.com: CWE-284
  • nvd@nist.gov: NVD-CWE-Other

Primary references