JSON (JavaScript Object Notation) is a lightweight data-interchange format.
It is easy for humans to read and write. It is easy for machines to parse and generate.
It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition
- December 1999. JSON is a text format that is completely language independent but uses
conventions that are familiar to programmers of the C-family of languages, including C, C++, C#,
Java, JavaScript, Perl, Python, and many others.
These properties make JSON an ideal data-interchange language.
[Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib.
When reaching a ‘[‘ or ‘{‘ character in the JSON input, the code parses an array or an object respectively.
It was discovered that the code does not have any limit to the nesting of such arrays or objects. Since the parsing of nested arrays and objects is done recursively, nesting too many of them can cause a stack exhaustion (stack overflow) and crash the software.
CVE-2023-1370 - High Severity Vulnerability
Vulnerable Library - json-smart-1.3.1.jar
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.
Library home page: http://www.minidev.net/
Path to vulnerable library: /root/.ivy2/cache/net.minidev/json-smart/bundles/json-smart-1.3.1.jar
Dependency Hierarchy: - pac4j-jwt-2.0.0.jar (Root Library) - nimbus-jose-jwt-4.34.2.jar - :x: **json-smart-1.3.1.jar** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
[Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib. When reaching a ‘[‘ or ‘{‘ character in the JSON input, the code parses an array or an object respectively. It was discovered that the code does not have any limit to the nesting of such arrays or objects. Since the parsing of nested arrays and objects is done recursively, nesting too many of them can cause a stack exhaustion (stack overflow) and crash the software.
Publish Date: 2023-03-22
URL: CVE-2023-1370
CVSS 3 Score Details (7.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://research.jfrog.com/vulnerabilities/stack-exhaustion-in-json-smart-leads-to-denial-of-service-when-parsing-malformed-json-xray-427633/
Release Date: 2023-03-22
Fix Resolution (net.minidev:json-smart): 2.4.9
Direct dependency fix Resolution (org.pac4j:pac4j-jwt): 5.0.0
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