CVE-2023-3301

Triggerable assertion due to race condition in hot-unplug

Severity Score

5.6

*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 QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

Se encontró una falla en QEMU. La naturaleza asíncrona de la desconexión en caliente permite un escenario de ejecución en el que el backend del dispositivo de red se borra antes de que se haya desconectado el frontend pci de virtio-net. Un invitado malintencionado podría utilizar esta ventana de tiempo para desencadenar una aserción y provocar una denegación de servicio.

Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the USB xHCI controller device. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that QEMU incorrectly handled the TCG Accelerator. A local attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code and escalate privileges. This issue only affected Ubuntu 20.04 LTS.

*Credits: This issue was discovered by Eugenio Perez Martin (Red Hat).

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

High

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-06-17 CVE Reserved
2023-09-13 CVE Published
2025-02-13 CVE Updated
2025-05-16 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-617: Reachable Assertion

CAPEC

References (3)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20231020-0008	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-3301	2023-11-07

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2215784	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				<= 8.0.3 Search vendor "Qemu" for product "Qemu" and version " <= 8.0.3"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0"		-		Affected