CVE-2024-20446 — Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability

Description (CNA)

A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco NX-OS Software	affected 10.2(1); affected 10.2(1q); affected 9.3(9); affected 8.2(11)

CWE

CWE-476

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.