CVE-2023-4389

Kernel: btrfs: double free in btrfs_get_root_ref()

Severity Score

7.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

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.

Se encontró una falla en btrfs_get_root_ref en fs/btrfs/disk-io.c en el sistema de archivos btrfs en el Kernel de Linux debido a un doble decremento del conteo de referencias. Este problema puede permitir a un atacante local con privilegios de usuario bloquear el sistema o filtrar información interna del kernel.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-08-16 CVE Reserved
2023-08-16 CVE Published
2023-08-18 EPSS Updated
2024-10-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-415: Double Free

CAPEC

References (3)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2023-4389	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219271	Issue Tracking

URL	Date	SRC

URL	Date	SRC
https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com	2023-12-22

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.7 < 5.10.112 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.7 < 5.10.112"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.11 < 5.15.35 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.35"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.16 < 5.17.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 5.17.4"		-		Affected