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THREATINT
PUBLISHED

CVE-2023-20051

Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability



Assignercisco
Reserved2022-10-27
Published2023-04-05
Updated2024-10-28

Description

A vulnerability in the Vector Packet Processor (VPP) of Cisco Packet Data Network Gateway (PGW) could allow an unauthenticated, remote attacker to stop ICMP traffic from being processed over an IPsec connection. This vulnerability is due to the VPP improperly handling a malformed packet. An attacker could exploit this vulnerability by sending a malformed Encapsulating Security Payload (ESP) packet over an IPsec connection. A successful exploit could allow the attacker to stop ICMP traffic over an IPsec connection and cause a denial of service (DoS).



MEDIUM: 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Product status

Any version
affected

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-pdng-dos-KmzwEy2Q (20230405 Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability) vendor-advisory

cve.org CVE-2023-20051

nvd.nist.gov CVE-2023-20051

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