Out-of-bounds Write Affecting py3-werkzeug package, versions <2.3.7-r0
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Test your applications- Snyk ID SNYK-ALPINE320-PY3WERKZEUG-7013767
- published 23 May 2024
- disclosed 25 Oct 2023
Introduced: 25 Oct 2023
CVE-2023-46136 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 py3-werkzeug to version 2.3.7-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream py3-werkzeug package and not the py3-werkzeug package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
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.