Juniper Junos 11.4 before 11.4R13 12.1X44 before 12.1X44-D45 12.1X46 before 12.1X46-D30 12.1X47 before 12.1X47-D15 12.2 before 12.2R9 12.3R7 before 12.3R7-S1 12.3 before 12.3R8 13.1 before 13.1R5 13.2 before 13.2R6 13.3 before 13.3R4 14.1 before 14.1R2 and 14.2 before 14.2R1 allows remote attackers to cause a denial of service (kernel crash and restart) via a crafted fragmented OSPFv3 packet with an IPsec Authentication Header (AH).