Double Free in Hjiang JSON\+\+
CVE-2022-23459
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 The project itself has been archived and updates are not expected.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.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Hjiang JSON\+\+ — versions 1.0.0, 1.0.1
- Hjiang Jsonxx — versions unspecified
Weakness classification (CWE)
References
- securitylab.github.com/advisories/GHSL-2022-048_Jsonxx (Broken Link)
Frequently asked questions
- What is CVE-2022-23459?
- CVE-2022-23459 is a high-severity vulnerability in Hjiang JSON\+\+, classified under Double Free. CVSS score: 8.1/10. Published 2022-08-19.
- How severe is CVE-2022-23459?
- High severity. CVSS v3 base score is 8.1 out of 10.