CVE-2023-4043

Parsson DoS when parsing numbers from untrusted sources

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In Eclipse Parsson before versions 1.1.4 and 1.0.5, Parsing JSON from untrusted sources can lead malicious actors to exploit the fact that the built-in support for parsing numbers with large scale in Java has a number of edge cases where the input text of a number can lead to much larger processing time than one would expect.

To mitigate the risk, parsson put in place a size limit for the numbers as well as their scale.

En Eclipse Parsson antes de las versiones 1.1.4 y 1.0.5, el Parsing JSON de fuentes no confiables puede llevar a actores maliciosos a explotar el hecho de que el soporte integrado para analizar números a gran escala en Java tiene varios casos extremos en los que el texto de entrada de un número puede llevar a un tiempo de procesamiento mucho mayor de lo que cabría esperar. Para mitigar el riesgo, parsson estableció un límite de tamaño para los números y su escala.

A flaw was found in Eclipse Parsson library when processing untrusted source content. This issue may cause a Denial of Service (DoS) due to built-in support for parsing numbers with a large scale, and some cases where processing a large number may take much more time than expected.

*Credits: Yuan Tian

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-08-01 CVE Reserved
2023-11-03 CVE Published
2023-11-14 EPSS Updated
2024-09-05 CVE Updated
2024-09-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-834: Excessive Iteration

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/13	2024-09-05

URL	Date	SRC
https://github.com/eclipse-ee4j/parsson/pull/100	2023-11-13

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-4043	2024-03-06
https://bugzilla.redhat.com/show_bug.cgi?id=2254594	2024-03-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Eclipse Search vendor "Eclipse"		Parsson Search vendor "Eclipse" for product "Parsson"				< 1.0.5 Search vendor "Eclipse" for product "Parsson" and version " < 1.0.5"		-		Affected
Eclipse Search vendor "Eclipse"		Parsson Search vendor "Eclipse" for product "Parsson"				>= 1.1.0 < 1.1.4 Search vendor "Eclipse" for product "Parsson" and version " >= 1.1.0 < 1.1.4"		-		Affected