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Red Hat OpenShift: CVE-2023-46136: python-werkzeug: high resource consumption leading to denial of service

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Red Hat OpenShift: CVE-2023-46136: python-werkzeug: high resource consumption leading to denial of service

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/25/2023
Created
12/01/2023
Added
11/30/2023
Modified
01/17/2024

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.

Solution(s)

  • linuxrpm-upgrade-python-werkzeug

References

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