CVE-2023-4389

HIGH

Linux Kernel 5.7-5.10.112 - Use-After-Free in btrfs_get_root_ref

Title source: llm
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-4389
Issue Tracking, Third Party Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2219271

Scores

CVSS v3 7.0
EPSS 0.0025
EPSS Percentile 16.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-415
Status published
Products (1)
linux/linux_kernel 5.7 - 5.10.112
Published Aug 16, 2023
Tracked Since Feb 18, 2026