CVE-2024-20304— Cisco IOS XR Software Packet Memory Exhaustion Vulnerability
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I. Basic Information for CVE-2024-20304
Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software Packet Memory Exhaustion Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device. This vulnerability exists because the Mtrace2 code does not properly handle packet memory. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to exhaust the incoming UDP packet memory. The affected device would not be able to process higher-level UDP-based protocols packets, possibly causing a denial of service (DoS) condition. Note: This vulnerability can be exploited using IPv4 or IPv6.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR 存在安全漏洞，该漏洞源于 Mtrace2 代码无法正确处理数据包内存。
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 IOS XR Software | 7.8.1 | - |
II. Public POCs for CVE-2024-20304
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2024-09-11 · 9 CVEs total
| CVE-2024-20381 | 8.8 HIGH | Cisco Network Services Orchestrator Configuration Update Authorization Bypass Vulnerabilit |
| CVE-2024-20398 | 8.8 HIGH | Cisco IOS XR Software Local Privilege Escalation Vulnerability |
| CVE-2024-20489 | 8.4 HIGH | Cisco Routed Passive Optical Network Cleartext Password Vulnerability |
| CVE-2024-20406 | 7.4 HIGH | Cisco IOS XR Software Intermediate System-to-Intermediate System Denial of Service Vulnera |
| CVE-2024-20317 | 7.4 HIGH | Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability |
| CVE-2024-20483 | 7.2 HIGH | Cisco IOS XR PON Controller Command Injection Vulnerabilities |
| CVE-2024-20343 | 5.5 MEDIUM | Cisco IOS XR Software CLI Arbitrary File Read Vulnerability |
| CVE-2024-20390 | 5.3 MEDIUM | Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability |
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Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2025-20340
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V. Comments for CVE-2024-20304
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