Improper Access Control Affecting linux-5.10 package, versions <5.10.149-2~deb10u1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.05% (21st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Access Control vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIAN10-LINUX510-3091157
  • published2 Dec 2021
  • disclosed24 Aug 2022

Introduced: 2 Dec 2021

CVE-2021-4037  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.149-2~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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 Scores

version 3.1