CVE-2021-2266

Oracle VirtualBox VMSVGA Numeric Truncation Information Disclosure Vulnerability

Severity Score

6.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.20. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle VM VirtualBox accessible data. CVSS 3.1 Base Score 6.0 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).

Una vulnerabilidad en el producto Oracle VM VirtualBox de Oracle Virtualization (componente: Core). La versión compatible que está afectada es la anterior a la 6.1.20. Una vulnerabilidad fácilmente explotable permite a un atacante muy privilegiado con inicio de sesión en la infraestructura donde se ejecuta Oracle VM VirtualBox comprometer a Oracle VM VirtualBox. Si bien la vulnerabilidad está en Oracle VM VirtualBox, los ataques pueden afectar significativamente a productos adicionales. Los ataques con éxito de esta vulnerabilidad pueden resultar en un acceso no autorizado a datos críticos o acceso completo a todos los datos accesibles de Oracle VM VirtualBox. CVSS 3.1 Puntuación Base 6.0 (Impactos en la Confidencialidad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N)

This vulnerability allows local attackers to disclose sensitive information on affected installations of Oracle VirtualBox. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability.
The specific flaw exists within the VMSVGA virtual device. The issue results from an integer truncation before reading from memory. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor.

*Credits: JunYoung Park (@candymate) of VirtualBoBs

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-12-09 CVE Reserved
2021-04-22 CVE Published
2024-09-26 CVE Updated
2024-11-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2021.html	2022-09-23

URL	Date	SRC
https://security.gentoo.org/glsa/202208-36	2022-09-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Vm Virtualbox Search vendor "Oracle" for product "Vm Virtualbox"				< 6.1.20 Search vendor "Oracle" for product "Vm Virtualbox" and version " < 6.1.20"		-		Affected