CVE-2023-46136

Public on 2023-10-25
Modified on 2024-04-02
Description
Werkzeug is a comprehensive WSGI web application library. If an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. This vulnerability has been patched in version 3.0.1.
Severity
Important severity
Important
CVSS v3 Base Score
8.0
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2023 python-werkzeug Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H