CVE-2022-31116
Incorrect handling of invalid surrogate pair characters
描述
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.
如何修補 CVE-2022-31116
要修補 CVE-2022-31116,請將受影響套件升級到下列已修補版本。
- —升級至 5.4.0 或更新版本
- —升級至 5.4.0 或更新版本
CVE-2022-31116 正在被利用嗎?
低 — EPSS 為 2.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 5.4.0
- from 0, < 5.4.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |