CVE-2024-20406

CVSS V2 None CVSS V3 None
Description
A vulnerability in the segment routing feature for the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of ingress IS-IS packets. An attacker could exploit this vulnerability by sending specific IS-IS packets to an affected device after forming an adjacency. A successful exploit could allow the attacker to cause the IS-IS process on all affected devices that are participating in the Flexible Algorithm to crash and restart, resulting in a DoS condition. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2-adjacent to the affected device and must have formed an adjacency. This vulnerability affects segment routing for IS-IS over IPv4 and IPv6 control planes as well as devices that are configured as level 1, level 2, or multi-level routing IS-IS type.
Overview
  • CVE ID
  • CVE-2024-20406
  • Assigner
  • cisco
  • Vulnerability Status
  • PUBLISHED
  • Published Version
  • 2024-09-11T16:38:50.133Z
  • Last Modified Date
  • 2024-09-11T20:38:41.758Z
History
Created Old Value New Value Data Type Notes
2024-09-12 13:09:29 Added to TrackCVE