// For flags

CVE-2020-14583

OpenJDK: Bypass of boundary checks in nio.Buffer via concurrent access (Libraries, 8238920)

Severity Score

8.3
*CVSS v3.1

Exploit Likelihood

1.1%
*EPSS

Affected Versions

30
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, Java SE Embedded. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

Vulnerabilidad en el producto Java SE, Java SE Embedded de Oracle Java SE (componente: Libraries). Las versiones compatibles que están afectadas son Java SE: 7u261, 8u251, 11.0.7 y 14.0.1; Java SE Embedded: 8u251. La vulnerabilidad difícil de explotar permite a un atacante no autenticado con acceso de red por medio de múltiples protocolos comprometer a Java SE, Java SE Embedded. Los ataques con éxito requieren la interacción humana de una persona diferente del atacante y, aunque la vulnerabilidad se encuentra en Java SE, Java SE Embedded, los ataques pueden afectar significativamente a productos adicionales. Los ataques con éxito de esta vulnerabilidad pueden resultar en la toma de control de Java SE, Java SE Embedded. Nota: Esta vulnerabilidad se aplica a las implementaciones de Java, generalmente en clientes que ejecutan aplicaciones Java Web Start en sandbox o applets de Java en sandbox, que cargan y ejecutan código no confiable (por ejemplo, código que proviene de Internet) y confían en el sandbox de Java para la seguridad. Esta vulnerabilidad no se aplica a las implementaciones de Java, generalmente en servidores, que cargan y ejecutan solo código confiable (por ejemplo, código instalado por parte de un administrador). CVSS 3.1 Puntuación Base 8.3 (Impactos de la Confidencialidad, Integridad y Disponibilidad). Vector CVSS: (CVSS: 3.1 / AV: N / AC: H / PR: N / UI: R / S: C / C: H / I: H / A: H)

Johannes Kuhn discovered that OpenJDK 8 incorrectly handled access control contexts. An attacker could possibly use this issue to execute arbitrary code. Philippe Arteau discovered that OpenJDK 8 incorrectly verified names in TLS server's X.509 certificates. An attacker could possibly use this issue to obtain sensitive information. It was discovered that OpenJDK 8 incorrectly handled exceptions in DerInputStream class and in the DerValue.equals method. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2020-06-19 CVE Reserved
  • 2020-07-15 CVE Published
  • 2024-09-27 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions (30)