Buffer overflow in IBM Domino 8.5.1 through 8.5.3 before 8.5.3 FP6 IF10 and 9.x before 9.0.1 FP4 IF3 allows remote attackers to execute arbitrary code or cause a denial of service (SMTP daemon crash) via a crafted GIF image, aka SPRs KLYH9ZDKRE and KLYH9ZTLEZ, a different vulnerability than CVE-2015-5040.