CVE-2023-2513 | BDVDB-2026-201659 Detail

Linux kernel ext4 filesystem

Description#

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-416 Use After Free

References#

Exploit#

No public exploit known

History#

Version 12023-05-08Record published in the CVE List.
Version 22025-04-23Most recent update recorded in the CVE List.

Published

Published: 2023-05-08
Last modified: 2025-04-23

Vendor information

Vendor: Not stated
Product: Linux kernel ext4 filesystem

Score

6.7 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 15.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Fixed in kernel 6.0-rc1
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.7 Medium

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

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).