Integer overflow in the fread function in ext/standard/file.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large integer in the second argument.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:LI:LA:H8.6/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H