Skip to content

Apache Johnzon Deserialization of Untrusted Data vulnerability

Moderate severity GitHub Reviewed Published Jul 7, 2023 to the GitHub Advisory Database • Updated Nov 10, 2023

Package

maven org.apache.johnzon:johnzon-mapper (Maven)

Affected versions

< 1.2.21

Patched versions

1.2.21

Description

A malicious attacker can craft up some JSON input that uses large numbers (numbers such as 1e20000000) that Apache Johnzon will deserialize into BigDecimal and maybe use numbers too large which may result in a slow conversion (Denial of service risk). Apache Johnzon 1.2.21 mitigates this by setting a scale limit of 1000 (by default) to the BigDecimal.

This issue affects Apache Johnzon through 1.2.20.

References

Published by the National Vulnerability Database Jul 7, 2023
Published to the GitHub Advisory Database Jul 7, 2023
Reviewed Jul 7, 2023
Last updated Nov 10, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

0.167%
(54th percentile)

Weaknesses

CVE ID

CVE-2023-33008

GHSA ID

GHSA-crqg-jrpj-fc84

Source code

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.