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CentOS Linux: CVE-2021-4037: Important: kernel-rt security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2021-4037: Important: kernel-rt security and bug fix update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/10/2022
Created
05/14/2022
Added
05/13/2022
Modified
05/25/2023

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.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

References

  • DSA-5257
  • CVE-2021-4037

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