Vulnerability Details : 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 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.
Published 2022-07-05 18:15:08
Updated 2022-11-05 02:47:27
Source GitHub, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2022-31117

Exploit prediction scoring system (EPSS) score for CVE-2022-31117

EPSS FAQ
0.16%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-31117

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
 MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
 NIST
5.9
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
2.2
3.6
 NIST
5.9
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
2.2
3.6
 GitHub, Inc.

CWE ids for CVE-2022-31117

  • The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
    Assigned by: security-advisories@github.com (Primary)

References for CVE-2022-31117

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