CVE-2022-31117

Double free of buffer during string decoding in ujson

Description

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 UltraJSON uses the internal decoder, this double free is impossible to trigger from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON 5.4.0. There are no known workarounds for this issue.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: ultrajson ultrajson
Published at:
Updated at:

References

Link Tags
https://github.com/ultrajson/ultrajson/security/advisories/GHSA-fm67-cv37-96ff third party advisory
https://github.com/ultrajson/ultrajson/commit/9c20de0f77b391093967e25d01fb48671104b15b third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPPU5FZP3LCTXYORFH7NHUMYA5X66IA7/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-31117?
CVE-2022-31117 has been scored as a medium severity vulnerability.
How to fix CVE-2022-31117?
To fix CVE-2022-31117, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31117 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31117 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-31117?
CVE-2022-31117 affects ultrajson ultrajson.
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