CVE-2021-3428

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-190

Affected software

VendorProductVersions
n/akernelAffects linux kernel before v5.9.

References

Timeline

Published
Mar 4, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3428: Medium severity, CVSS 5.5 | Vulnix