A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client. Samba versions before 4.6.16, 4.7.9 and 4.8.4 are vulnerable.
Exploitability
AV:NAC:LPR:HUI:RScope
S:UImpact
C:LI:LA:L4.3/CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:LInput Validation