CVE-2020-5652
Description
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 .
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mitsubishielectric melsec_q-q04udpvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q06udpvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q13udpvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q26udpvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q03udvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q04udvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q13udvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q26udvcpu_firmware | 22031 | — |
| mitsubishielectric melsec_q-q03udecpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q04udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q06udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q10udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q13udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q20udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q26udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q50udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_q-q100udehcpu_firmware | 22081 | — |
| mitsubishielectric melsec_iq-r08sfcpu_firmware | 22 | — |
| mitsubishielectric melsec_iq-r16sfcpu_firmware | 22 | — |
| mitsubishielectric melsec_iq-r32sfcpu_firmware | 22 | — |
| mitsubishielectric melsec_iq-r120sfcpu_firmware | 22 | — |
| mitsubishielectric melsec_iq-r04encpu_firmware | 52 | — |
| mitsubishielectric melsec_iq-r08encpu_firmware | 52 | — |
| mitsubishielectric melsec_iq-r16encpu_firmware | 52 | — |
| mitsubishielectric melsec_iq-r32encpu_firmware | 52 | — |
| mitsubishielectric melsec_iq-r120encpu_firmware | 52 | — |
| mitsubishielectric melsec_iq-r00cpu_firmware | 20 | — |
| mitsubishielectric melsec_iq-r01cpu_firmware | 20 | — |
| mitsubishielectric melsec_iq-r02cpu_firmware | 20 | — |
| mitsubishielectric melsec_iq-r08pcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r08psfcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r120pcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r120psfcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r16mtcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r16pcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r16psfcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r32mtcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r32pcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r32psfcpu_firmware | No range specified | — |
| mitsubishielectric melsec_iq-r64mtcpu_firmware | No range specified | — |
| mitsubishielectric melsec_l02cpu-p_firmware | No range specified | — |
| mitsubishielectric melsec_l06cpu-p_firmware | No range specified | — |
| mitsubishielectric melsec_l26cpu-p_firmware | No range specified | — |
| mitsubishielectric melsec_l26cpu-pbt_firmware | No range specified | — |
| mitsubishielectric melsec_q-q170mcpu_firmware | No range specified | — |
| mitsubishielectric melsec_q-q170mscpu-s1_firmware | No range specified | — |
| mitsubishielectric melsec_q-q172dcpu-s1_firmware | No range specified | — |
| mitsubishielectric melsec_q-q172dscpu_firmware | No range specified | — |
| mitsubishielectric melsec_q-q173dcpu-s1_firmware | No range specified | — |
| mitsubishielectric melsec_q-q173dscpu_firmware | No range specified | — |
| mitsubishielectric melsec_q-qmr-mq100_firmware | No range specified | — |
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