id: PYSEC-2019-165 details: The Serialize.deserialize() method in CoAPthon 3.1, 4.0.0, 4.0.1, and 4.0.2 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, CoAP reverse proxy, example collect CoAP server and client) when they receive crafted CoAP messages. affected: - package: name: coapthon ecosystem: PyPI purl: pkg:pypi/coapthon ranges: - type: ECOSYSTEM events: - introduced: '3.1' versions: - 4.0.0 - 4.0.1 - 4.0.2 references: - type: REPORT url: https://github.com/Tanganelli/CoAPthon/issues/135 - type: ADVISORY url: https://github.com/advisories/GHSA-5xc6-fpc7-4qvg aliases: - CVE-2018-12680 - GHSA-5xc6-fpc7-4qvg modified: '2021-08-25T04:57:20.831477Z' published: '2019-04-02T20:29:00Z'