CVE-2023-4043

2023-11-0309:15:13

CWE-20

CWE-834

[email protected]

web.nvd.nist.gov

cve-2023-4043

eclipse parsson

json parsing

vulnerability

exploitation

number size limit

security mitigation

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

6.4 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.6%

JSON

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.