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CVE-2023-20051— Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco ASR 5000 Series Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Packet Data Network Gateway是美国思科（Cisco）公司的 4G 移动核心网络的关键网络功能。PGW 充当 LTE 网络与其他分组数据网络之间的接口。 Cisco Packet Data Network Gateway 存在安全漏洞，该漏洞源于 Vector Packet Processor 未正确处理格式错误的数据包。

CVSS 5.8 · Medium EPSS 0.87% · P57
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I. Basic Information for CVE-2023-20051

Vulnerability Information
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Vulnerability Title
Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability
Source: CVE Program / CVE List V5
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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Packet Data Network Gateway 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Packet Data Network Gateway是美国思科（Cisco）公司的 4G 移动核心网络的关键网络功能。PGW 充当 LTE 网络与其他分组数据网络之间的接口。 Cisco Packet Data Network Gateway 存在安全漏洞，该漏洞源于 Vector Packet Processor 未正确处理格式错误的数据包。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco ASR 5000 Series Software n/a -

II. Public POCs for CVE-2023-20051

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III. Intelligence Information for CVE-2023-20051

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Vendor Advisories for CVE-2023-20051 (1)

Same Patch Batch · Cisco · 2023-04-05 · 40 CVEs total

CVE-2023-20102 8.8 HIGH Cisco Secure Network Analytics Remote Code Execution Vulnerability
CVE-2023-20128 7.2 HIGH Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers Command Injection Vulner
CVE-2023-20117 7.2 HIGH Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers Command Injection Vulner
CVE-2023-20118 6.5 MEDIUM Cisco Small Business 输入验证错误漏洞
CVE-2023-20131 6.5 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Vulnerabilities
CVE-2023-20130 6.5 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Vulnerabilities
CVE-2023-20129 6.5 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Vulnerabilities
CVE-2023-20127 6.5 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Vulnerabilities
CVE-2023-20124 6.5 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers Remote Command
CVE-2023-20123 6.3 MEDIUM Cisco Duo Authentication for macOS and Duo Authentication for Windows Logon Offline Creden
CVE-2023-20151 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20141 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20140 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20139 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20138 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20137 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20142 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20143 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20146 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc
CVE-2023-20150 6.1 MEDIUM Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Sc

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco ASR 5000 Series Software
Same vendor: Cisco
Same weakness: CWE-400

V. Comments for CVE-2023-20051

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