CVE-2021-4037
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-4037
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4037.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-4037
- Downstream
- Related
- Published
- 2022-08-24T16:15:09Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A vulnerability was found in the fs/inode.c:inodeinitowner() 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
-
- https://access.redhat.com/security/cve/CVE-2021-4037
- https://bugzilla.redhat.com/show_bug.cgi?id=2004810
- https://bugzilla.redhat.com/show_bug.cgi?id=2027239
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://www.debian.org/security/2022/dsa-5257