CVE-2020-24352

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Se detectó un problema en QEMU versiones hasta 5.1.0. Se encontró un acceso a memoria fuera de límites en la implementación del dispositivo ATI VGA. Este fallo ocurre en la rutina ati_2d_blt() en el archivo hw/display/ati_2d.c mientras se manejan las operaciones de escritura MMIO por medio de la devolución de llamada de ati_mm_write(). Un invitado malicioso podría usar este fallo para bloquear el proceso QEMU en el host, resultando en una denegación de servicio

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-13 CVE Reserved
2020-10-16 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read
CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=1847584	Issue Tracking
https://security.netapp.com/advisory/ntap-20201123-0003	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://git.qemu.org/?p=qemu.git	2021-07-21

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"				<= 4.2.1 Search vendor "Qemu" for product "Qemu" and version " <= 4.2.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				5.0.0 Search vendor "Qemu" for product "Qemu" and version "5.0.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				5.0.0 Search vendor "Qemu" for product "Qemu" and version "5.0.0"		rc1		Affected