What is CVE-2023-4394?

CVE-2023-4394 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.0 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400). CVE-2023-4394 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-4394?

CVE-2023-4394 has a CVSS score of 6.0 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2023-4394?

No patch is currently available for CVE-2023-4394. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-4394 actively exploited?

CVE-2023-4394 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2023-4394

Medium

A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information

Package Linux Kernel

Published 2023-08-17

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.0

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-400

CVE-2023-4394 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-4394 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2023-4394

Issue Tracking Third Party Advisory
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2219263
Patch
Kernel patch commit
https://patchwork.kernel.org/project/linux-btrfs/patch/[email protected]/
Patch

Details

CVE ID CVE-2023-4394

Severity Medium

CVSS score 6.0 / 10

CVSS version 3.1

Published 2023-08-17

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-4394?

CVE-2023-4394 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.0 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . CVE-2023-4394 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-4394?

CVE-2023-4394 has a CVSS score of 6.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2023-4394?

No patch is currently available for CVE-2023-4394. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-4394 actively exploited?

No — CVE-2023-4394 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. View CWE-400 on MITRE CWE →