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

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

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/28/2024
Created
09/06/2024
Added
09/04/2024
Modified
11/13/2024

Description

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.

Solution(s)

  • cisco-nx-update-latest

References

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