Deserialization of untrusted data

An exploitable code execution vulnerability exists in the Levin deserialization functionality of the Epee library, as used in Monero ‘Lithium Luna’ (v0.12.2.0-master-ffab6700) and other cryptocurrencies. A specially crafted network packet can cause a logic flaw, resulting in code execution. An attacker can send a packet to trigger this vulnerability.