2020-10-30 03:35:51
jpcert
PUBLISHED
Uncontrolled resource consumption vulnerability in Ethernet Port on MELSEC iQ-R, Q and L series CPU modules (R 00/01/02 CPU firmware versions 20 and earlier, R 04/08/16/32/120 (EN) CPU firmware versions 52 and earlier, R 08/16/32/120 SFCPU firmware versions 22 and earlier, R 08/16/32/120 PCPU all versions, R 08/16/32/120 PSFCPU all versions, R 16/32/64 MTCPU all versions, Q03 UDECPU, Q 04/06/10/13/20/26/50/100 UDEHCPU serial number 22081 and earlier , Q 03/04/06/13/26 UDVCPU serial number 22031 and earlier, Q 04/06/13/26 UDPVCPU serial number 22031 and earlier, Q 172/173 DCPU all versions, Q 172/173 DSCPU all versions, Q 170 MCPU all versions, Q 170 MSCPU all versions, L 02/06/26 CPU (-P) and L 26 CPU - (P) BT all versions) allows a remote unauthenticated attacker to stop the Ethernet communication functions of the products via a specially crafted packet, which may lead to a denial of service (DoS) condition .