CVE-2020-2511

Severity Score

7.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Vulnerability in the Core RDBMS component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via OracleNet to compromise Core RDBMS. While the vulnerability is in Core RDBMS, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Core RDBMS. CVSS 3.0 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

Vulnerabilidad en el componente Core RDBMS de Oracle Database Server. Las versiones compatibles afectadas son 12.1.0.2, 12.2.0.1, 18c y 19c. Una vulnerabilidad fácilmente explotable permite a un atacante poco privilegiado que tiene el privilegio Create Session con acceso a la red por medio de OracleNet comprometer a Core RDBMS. Aunque la vulnerabilidad se presenta en Core RDBMS, los ataques pueden impactar significativamente a productos adicionales. Los ataques con éxito de esta vulnerabilidad pueden resultar en la capacidad no autorizada de causar una suspensión o bloqueo repetible frecuentemente (DOS completo) de Core RDBMS. CVSS 3.0 Puntaje Base 7.7 (Impactos en la Disponibilidad). Vector CVSS: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-12-10 CVE Reserved
2020-01-15 CVE Published
2023-03-08 EPSS Updated
2024-09-30 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpujan2020.html	2022-10-25

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				12.1.0.2 Search vendor "Oracle" for product "Database Server" and version "12.1.0.2"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				12.2.0.1 Search vendor "Oracle" for product "Database Server" and version "12.2.0.1"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				18c Search vendor "Oracle" for product "Database Server" and version "18c"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				19c Search vendor "Oracle" for product "Database Server" and version "19c"		-		Affected