CVE-2020-3569
Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerabilities
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- December 12, 2019
- Published Date
- September 23, 2020
- Last Updated
- November 08, 2024
- Vendor
- Cisco
- Product
- Cisco IOS XR Software
- Description
- 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.
CVSS Scores
CVSS v3.1
8.6 - HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC Information
- Exploitation
- active
- Automatable
- Yes
- Technical Impact
- partial
Exploit Status
- Exploited in the Wild
- Yes (added 2021-11-03 00:00:00 UTC) Source
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CISA | 2021-11-03 00:00:00 UTC |