CVE-2019-17639

JDK: Information disclosure via calls to System.arraycopy() with invalid length

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Eclipse OpenJ9 prior to version 0.21 on Power platforms, calling the System.arraycopy method with a length longer than the length of the source or destination array can, in certain specially crafted code patterns, cause the current method to return prematurely with an undefined return value. This allows whatever value happens to be in the return register at that time to be used as if it matches the method's declared return type.

En Eclipse OpenJ9 anterior a la versión 0.21 en plataformas Power, llamar al método System.arraycopy con una longitud mayor que la longitud de la matriz de origen o destino puede, en determinados patrones de código especialmente diseñados, hacer que el método actual regrese prematuramente con un valor de retorno indefinido. Esto permite que cualquier valor que esté en el registro de retorno en ese momento sea usado como si coincide con el tipo de retorno declarado del método

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-10-16 CVE Reserved
2020-07-15 CVE Published
2023-03-31 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugs.eclipse.org/bugs/show_bug.cgi?id=563998	2020-08-12
https://access.redhat.com/security/cve/CVE-2019-17639	2020-12-16
https://bugzilla.redhat.com/show_bug.cgi?id=1866497	2020-12-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Search vendor "Eclipse"		Openj9 Search vendor "Eclipse" for product "Openj9"				<= 0.20.0 Search vendor "Eclipse" for product "Openj9" and version " <= 0.20.0"		-		Affected
Eclipse Search vendor "Eclipse"		Openj9 Search vendor "Eclipse" for product "Openj9"				0.21.0 Search vendor "Eclipse" for product "Openj9" and version "0.21.0"		-		Affected
Eclipse Search vendor "Eclipse"		Openj9 Search vendor "Eclipse" for product "Openj9"				0.21.0 Search vendor "Eclipse" for product "Openj9" and version "0.21.0"		milestone1		Affected
Eclipse Search vendor "Eclipse"		Openj9 Search vendor "Eclipse" for product "Openj9"				0.21.0 Search vendor "Eclipse" for product "Openj9" and version "0.21.0"		milestone2		Affected