CVE-2024-20267
A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the
Description
A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. This vulnerability is due to lack of proper error checking when processing an ingress MPLS frame. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that is encapsulated within an MPLS frame to an MPLS-enabled interface of the targeted device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition. Note: The IPv6 packet can be generated multiple hops away from the targeted device and then encapsulated within MPLS. The DoS condition may occur when the NX-OS device processes the packet.
Weakness: CWE-120
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco NX-OS Software | Routing & Switching | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco NX-OS Software
Vendor advisory
cisco-sa-ipv6-mpls-dos-R9ycXkwM
Cisco NX-OS Software MPLS Encapsulated IPv6 Denial of Service Vulnerability
Cisco’s rating: High (advisory CVSS 8.6) · Published Feb 28, 2024
Bug IDs: CSCva52387 , CSCwh42690
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from