CVE-2023-4389

High

A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.

Package Linux Kernel
Published 2023-08-16
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.1

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness type

CWE-415

CVE-2023-4389 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2023-4389 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2023-4389?

    CVE-2023-4389 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2023-4389 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-4389?

    CVE-2023-4389 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H .

  • Is there a patch available for CVE-2023-4389?

    No patch is currently available for CVE-2023-4389. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2023-4389 actively exploited?

    No — CVE-2023-4389 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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