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VULNERABILITIES

CVE-2021-3428 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1972621 CVEIssue TrackingPermissions RequiredThird Party Advisory
https://ubuntu.com/security/CVE-2021-3428 CVEThird Party Advisory
https://www.openwall.com/lists/oss-security/2021/03/17/1 CVEMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1972621 [email protected]Issue TrackingPermissions RequiredThird Party Advisory
https://ubuntu.com/security/CVE-2021-3428 [email protected]Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparound[email protected]
CWE-190Integer Overflow or Wraparound[email protected]

Affected Products

ProductVersions
linux linux kernel
< 5.9.0

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3428
NVD Published Date:
Mar 4, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-3428 Details - Not Deferred