CVE-2020-3569
published 2020-09-23CVE-2020-3569: Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote…
high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group Management Protocol (IGMP) process or make it consume available memory and eventually crash. The memory consumption may negatively impact other processes that are running on the device. These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address these vulnerabilities.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xr_software | — | — |
| cisco | ios_xr | < 6.5.2 | 6.5.2 |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
| cisco | ios_xr | — | — |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
vulncheck8.6HIGH
cisa8.6HIGH