cnvd - cnvd-2020-70971

cnvd-2020-70971

Vulnerability from cnvd

Title: Cisco IOS XE拒绝服务漏洞（CNVD-2020-70971）

Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco ASR 1000系列聚合服务路由器使用的Cisco IOS XE的IP地址解析协议（ARP）功能存在拒绝服务漏洞。该漏洞源于受影响的设备达到平台限制时错误处理不足。攻击者可通过发送一系列恶意IP ARP消息利用该漏洞耗尽系统资源，从而可导致设备重新加载。

Severity: 中

Patch Name: Cisco IOS XE拒绝服务漏洞（CNVD-2020-70971）的补丁

Patch Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco ASR 1000系列聚合服务路由器使用的Cisco IOS XE的IP地址解析协议（ARP）功能存在拒绝服务漏洞。该漏洞源于受影响的设备达到平台限制时错误处理不足。攻击者可通过发送一系列恶意IP ARP消息利用该漏洞耗尽系统资源，从而可导致设备重新加载。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esp20-arp-dos-GvHVggqJ

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3508

Impacted products

Name
Cisco IOS XE

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2020-3508",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3508"
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  "products": {
    "product": "Cisco IOS XE"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3508",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-25",
  "title": "Cisco IOS XE\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-70971\uff09"
}

CVE-2020-3508 (GCVE-0-2020-3508)

Vulnerability from cvelistv5

Published

2020-09-24 17:51

Modified

2024-11-13 18:00

Severity ?

7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-400

Summary

A vulnerability in the IP Address Resolution Protocol (ARP) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers with a 20-Gbps Embedded Services Processor (ESP) installed could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service condition. The vulnerability is due to insufficient error handling when an affected device has reached platform limitations. An attacker could exploit this vulnerability by sending a malicious series of IP ARP messages to an affected device. A successful exploit could allow the attacker to exhaust system resources, which would eventually cause the affected device to reload.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esp20-arp-dos-GvHVggqJ	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE Software	Version: n/a

Show details on NVD website

JSON

To clipboard

{
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          }
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        "metrics": [
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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