CVE-2023-20051

Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability

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).

Category

5.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.38%
Vendor Advisory cisco.com
Affected: Cisco Cisco ASR 5000 Series Software
Published at:
Updated at:

References

Link Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-pdng-dos-KmzwEy2Q vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-20051?
CVE-2023-20051 has been scored as a medium severity vulnerability.
How to fix CVE-2023-20051?
To fix CVE-2023-20051, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-20051 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-20051 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20051?
CVE-2023-20051 affects Cisco Cisco ASR 5000 Series Software .
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