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CVE-2009-4131

HighPublished

The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite...

Published: Dec 13, 2009
Updated: Aug 7, 2024
Assigning CNA: redhat
Evidence observed: Nov 9, 2009

Primary CVSS

7.2/ 10High

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 54.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.

Sources

Linux Kernel 2.6.x - Ext4 'move extents' ioctl Privilege EscalationExploit
Akira Fujita · linux · Nov 9, 2009

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