Smartphones must stay connected to mobile networks at all times to function properly. The core component that enables this constant connectivity is the communication modem (baseband) inside the device. KAIST researchers, using their self-developed testing framework called LLFuzz (Lower Layer Fuzz), have discovered security vulnerabilities in the lower layers of smartphone communication modems and demonstrated the necessity of standardizing mobile communication modem security testing.
Vulnerability found: A single packet can paralyze smartphones
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