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Neutralizing Tofsee Spambot – Part 3 | Network-based kill switch

ID: a1a01da0-7013-5258-acab-cdf951d48385

STIX ID: report--a1a01da0-7013-5258-acab-cdf951d48385

Feed Name: The Spamhaus Project

Threat Score
45/100

Date Published: 2023-04-06

Date Updated: 2026-04-30

Author: The Spamhaus Team

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**Executive Summary:** The report details an unbounded-length vulnerability in the CRC32 hash routine used when parsing an InmemoryConfig resource in the Tofsee binary; by crafting a ResourceStructure packet with a manipulated 4-byte len field an attacker can trigger an out-of-bounds read that crashes the process.

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