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CVE-2021-4037

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 Software


CPE Name Name Version
linux:linux_kernel linux linux kernel 5.11
debian:debian_linux debian debian linux 10.0
debian:debian_linux debian debian linux 11.0

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