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This post walks through running fuzzwario on an embedded LoRaWAN stack and ending up with a real bug: CVE-2022-39274, a size validation issue in ProcessRadioRxDone that can lead to a massive out-of-bounds write.

Finding CVE-2022-39274 in LoRaMac-node with Fuzzwario

This post walks through running fuzzwario on an embedded LoRaWAN stack and ending up with a real bug: CVE-2022-39274, a size validation issue in ProcessRadioRxDone that can lead to a massive out-of-bounds write.