CVE-2023-1370 — Stack exhaustion in json-smart leads to denial of service when parsing malformed JSON

Affected: json-smart

[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.

USN-6011-1 — json-smart vulnerabilities

Affected: Ubuntu:18.04:LTS: json-smart, Ubuntu:20.04:LTS: json-smart, Ubuntu:22.04:LTS: json-smart

It was discovered that Json-smart incorrectly handled memory when processing input containing unclosed quotes. A remote attacker could possibly use this issue to cause applications using Json-smart to crash, leading to a denial of service. (CVE-2021-31684)

It was discovered that Json-smart incorrectly handled memory when processing input containing unclosed brackets. A remote attacker could possibly use this issue to cause applications using Json-smart to crash, leading to a denial of service. (CVE-2023-1370)

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CVE-2023-1370 — Stack exhaustion in json-smart leads to denial of service when parsing malformed JSON

USN-6011-1 — json-smart vulnerabilities