CVE-2023-6270

Kernel: aoe: improper reference count leads to use-after-free vulnerability

Severity Score

7.0

*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 the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.

Se encontró una falla en el controlador ATA sobre Ethernet (AoE) en el kernel de Linux. La función aoecmd_cfg_pkts() actualiza incorrectamente el refcnt en `struct net_device`, y se puede activar el use after free corriendo entre lo libre en la estructura y el acceso a través de la cola global `skbtxq`. Esto podría provocar una condición de denegación de servicio o una posible ejecución de código.

*Credits: N/A

CVSS Scores

NISTv3.1 7.0

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-11-23 CVE Reserved
2024-01-04 CVE Published
2024-06-26 EPSS Updated
2024-10-22 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (4)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2023-6270	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2256786	Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC

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"				-		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				39 Search vendor "Fedoraproject" for product "Fedora" and version "39"		-		Affected