A vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (All versions < V7.1.2), RUGGEDCOM RM1224 LTE(4G) NAM (All versions < V7.1.2), SCALANCE M804PB (All versions < V7.1.2), SCALANCE M812-1 ADSL-Router (Annex A) (All versions < V7.1.2), SCALANCE M812-1 ADSL-Router (Annex B) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (Annex A) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (Annex B) (All versions < V7.1.2), SCALANCE M826-2 SHDSL-Router (All versions < V7.1.2), SCALANCE M874-2 (All versions < V7.1.2), SCALANCE M874-3 (All versions < V7.1.2), SCALANCE M876-3 (EVDO) (All versions < V7.1.2), SCALANCE M876-3 (ROK) (All versions < V7.1.2), SCALANCE M876-4 (All versions < V7.1.2), SCALANCE M876-4 (EU) (All versions < V7.1.2), SCALANCE M876-4 (NAM) (All versions < V7.1.2), SCALANCE MUM853-1 (EU) (All versions < V7.1.2), SCALANCE MUM856-1 (EU) (All versions < V7.1.2), SCALANCE MUM856-1 (RoW) (All versions < V7.1.2), SCALANCE S615 (All versions < V7.1.2), SCALANCE S615 EEC (All versions < V7.1.2), SCALANCE WAM763-1 (All versions >= V1.1.0 < V2.0), SCALANCE WAM766-1 (EU) (All versions >= V1.1.0 < V2.0), SCALANCE WAM766-1 (US) (All versions >= V1.1.0 < V2.0), SCALANCE WAM766-1 EEC (EU) (All versions >= V1.1.0 < V2.0), SCALANCE WAM766-1 EEC (US) (All versions >= V1.1.0 < V2.0), SCALANCE WUM763-1 (All versions >= V1.1.0 < V2.0), SCALANCE WUM763-1 (All versions >= V1.1.0 < V2.0), SCALANCE WUM766-1 (EU) (All versions >= V1.1.0 < V2.0), SCALANCE WUM766-1 (US) (All versions >= V1.1.0 < V2.0). Affected devices with TCP Event service enabled do not properly handle malformed packets. This could allow an unauthenticated remote attacker to cause a denial of service condition and reboot the device thus possibly affecting other network resources.

Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a denial-of-service condition. The vulnerability can be triggered if a large amount of DCP reset packets are sent to the device.

A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.