The sys_recvfrom function in nmbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed UDP packet.
Exploitability
AV:AAC:LAu:NImpact
C:NI:NA:P3.3/AV:A/AC:L/Au:N/C:N/I:N/A:P