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CVE-2021-4037

UNKNOWN
Published 2022-08-24T00:00:00
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No CVSS data available

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-gvgr-4fph-m6hc

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-4037
WEB https://access.redhat.com/security/cve/CVE-2021-4037
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2004810
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2027239
WEB https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e
WEB https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848
WEB https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
WEB https://www.debian.org/security/2022/dsa-5257

Advisory provided by GitHub Security Advisory Database. Published: August 25, 2022, Modified: August 29, 2022

References

https://bugzilla.redhat.com/show_bug.cgi?id=2004810
https://bugzilla.redhat.com/show_bug.cgi?id=2027239
https://access.redhat.com/security/cve/CVE-2021-4037
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://www.debian.org/security/2022/dsa-5257
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Published: 2022-08-24T00:00:00
Last Modified: 2024-08-03T17:16:02.950Z
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