CVE-2021-4037

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.

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2027239	Issue Tracking Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e	Mailing List Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848	Mailing List Patch
https://access.redhat.com/security/cve/CVE-2021-4037	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2004810	Issue Tracking Permissions Required
https://www.debian.org/security/2022/dsa-5257	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

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Published : 2022-08-24 04:15

Updated : 2022-12-08 03:40

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NVD link : CVE-2021-4037

Mitre link : CVE-2021-4037

No products.

CWE-284