CVE-2023-4389 HIGH

CVE-2023-4389: Kernel: btrfs: double free in btrfs_get_root_ref()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-415
Published August 16, 2023
Last update October 15, 2024
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 16, 2023 CVE published
October 15, 2024 Record updated