An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDPTLVADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdpdecode in daemon/protocols/cdp.c.
lldpd before 0.8.0 allows remote attackers to cause a denial of service (assertion failure and daemon crash) via a malformed packet.