cnvd - cnvd-2018-14080

cnvd-2018-14080

Vulnerability from cnvd

Title: Cisco Nexus 9000 Series Fabric Switches DHCPv6功能拒绝服务漏洞

Description:

Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列交换机产品。

Cisco Nexus 9000 Series Fabric Switches（处于ACI模式）13.0(1k)版本中的DHCPv6功能存在拒绝服务漏洞，该漏洞源于程序在目标设备的接口上接收DHCPv6数据包时未能正确的管理内存。远程攻击者可通过发送大量的恶意的DHCPv6数据包利用该漏洞造成拒绝服务。

Severity: 高

Patch Name: Cisco Nexus 9000 Series Fabric Switches DHCPv6功能拒绝服务漏洞的补丁

Patch Description:

Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列交换机产品。

Cisco Nexus 9000 Series Fabric Switches（处于ACI模式）13.0(1k)版本中的DHCPv6功能存在拒绝服务漏洞，该漏洞源于程序在目标设备的接口上接收DHCPv6数据包时未能正确的管理内存。远程攻击者可通过发送大量的恶意的DHCPv6数据包利用该漏洞造成拒绝服务。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:

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-0372

Impacted products

Name
Cisco Nexus 9000 Series Fabric Switches 13.0(1k)

Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-0372",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0372"
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  "number": "CNVD-2018-14080",
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  "patchName": "Cisco Nexus 9000 Series Fabric Switches DHCPv6\u529f\u80fd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-0372",
  "serverity": "\u9ad8",
  "submitTime": "2018-07-26",
  "title": "Cisco Nexus 9000 Series Fabric Switches DHCPv6\u529f\u80fd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-0372 (GCVE-0-2018-0372)

Vulnerability from cvelistv5

Published

2018-07-18 23:00

Modified

2024-11-29 14:51

Severity ?

CWE

CWE-400

Summary

A vulnerability in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause the device to run low on system memory, which could result in a Denial of Service (DoS) condition on an affected system. The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1041348	vdb-entry, x_refsource_SECTRACK

Impacted products

	Vendor	Product	Version
	n/a	Cisco Nexus 9000 Series unknown	Version: Cisco Nexus 9000 Series unknown

Show details on NVD website

JSON

To clipboard

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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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