# CVE-2023-1370: json-smart: [Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib

CVE-2023-1370 is fixed in 2 products on 1 platform, first by libjson-smart-java 2.2-2ubuntu0.18.04.1, released March 21, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-1370
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0112
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 21, 2023

## Description

[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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | json-smart Debian 12.15 (bookworm) | 2.2-2+deb12u1 | [DEBIAN-CVE-2023-1370](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1370.md) | Mar 22, 2023 |
| Linux | json-smart Debian 13.5 (trixie) | 2.2-3 | [DEBIAN-CVE-2023-1370](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1370.md) | Mar 22, 2023 |
| Linux | json-smart Debian 14 | 2.2-3 | [DEBIAN-CVE-2023-1370](https://patchblox.com/security/data/fix/linux/debian-cve-2023-1370.md) | Mar 22, 2023 |
| Linux | libjson-smart-java Ubuntu 18.04.6 LTS (bionic) | 2.2-2ubuntu0.18.04.1 | [libjson-smart-java 2.2-2ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjson-smart-java-2.2-2ubuntu0.18.04.1.md) | Mar 21, 2023 |
| Linux | libjson-smart-java Ubuntu 20.04 LTS (focal) | 2.2-2ubuntu0.20.04.1 | [libjson-smart-java 2.2-2ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libjson-smart-java-2.2-2ubuntu0.20.04.1.md) | Mar 21, 2023 |
| Linux | libjson-smart-java Ubuntu 22.04.1 LTS (jammy) | 2.2-2ubuntu0.22.04.1 | [libjson-smart-java 2.2-2ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjson-smart-java-2.2-2ubuntu0.22.04.1.md) | Mar 21, 2023 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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