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.
CVE-2022-31116 - High Severity Vulnerability
Ultra fast JSON encoder and decoder for Python
Library home page: https://files.pythonhosted.org/packages/0d/ca/404a902e7fc2d39796b01f72e90a2b32e7ca25a3708bcf1d602ccf9e3658/ujson-2.0.3-cp27-cp27mu-manylinux1_x86_64.whl
Path to dependency file: /src
Path to vulnerable library: /src,/src/webui/backend
Dependency Hierarchy: - :x: **ujson-2.0.3-cp27-cp27mu-manylinux1_x86_64.whl** (Vulnerable Library)
Found in HEAD commit: 8df0c9edde054463776fa58e88036ee2a783a41f
Found in base branch: master
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.
Publish Date: 2022-07-05
URL: CVE-2022-31116
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-31116
Release Date: 2022-07-05
Fix Resolution: ujson - 5.4.0
:rescue_worker_helmet: Automatic Remediation is available for this issue