CVE-2022-23459 HIGH

CVE-2022-23459: Double free or Use after Free in Value class of Jsonxx

Vendor Hjiang
Product Jsonxx
Weakness CWE-416
Published August 19, 2022
Last update April 23, 2025

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Jsonxx or Json++ is a JSON parser, writer and reader written in C++. In affected versions of jsonxx use of the Value class may lead to memory corruption via a double free or via a use after free. The value class has a default assignment operator which may be used with pointer types which may point to alterable data where the pointer itself is not updated. This issue exists on the current commit of the jsonxx project. The project itself has been archived and updates are not expected. Users are advised to find a replacement.

Key dates

02Disclosure timeline

August 19, 2022 CVE published
April 23, 2025 Record updated