Double Free in Ultrajson
CVE-2022-31117
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how…
Vulnerability class: Double Free
EPSS: 0.017 (74.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Ultrajson — versions < 5.4.0
- Ultrajson_project Ultrajson
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
- security-advisories@github.com (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2022-31117?
- CVE-2022-31117 is a medium-severity vulnerability in Ultrajson, classified under Double Free. CVSS score: 5.9/10. Published 2022-07-05.
- How severe is CVE-2022-31117?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2022-31117 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.