cnvd - cnvd-2019-14701

cnvd-2019-14701

Vulnerability from cnvd

Title: Cisco IOS XR Software拒绝服务漏洞（CNVD-2019-14701）

Description:

Cisco IOS XR Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。

Cisco IOS XR Software存在拒绝服务漏洞，攻击者可利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: Cisco IOS XR Software拒绝服务漏洞（CNVD-2019-14701）的补丁

Patch Description:

Cisco IOS XR Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。

Cisco IOS XR Software存在拒绝服务漏洞，攻击者可利用该漏洞导致拒绝服务。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:

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-20190515-iosxr-evpn-dos

Reference: https://web.nvd.nist.gov//vuln/detail/CVE-2019-1849

Impacted products

Name
Cisco IOS XR Software

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1849",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1849"
    }
  },
  "description": "Cisco IOS XR Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684IOS\u8f6f\u4ef6\u7cfb\u5217\uff08\u5305\u62ecIOS T\u3001IOS S\u548cIOS XR\uff09\u4e2d\u7684\u4e00\u5957\u5b8c\u5168\u6a21\u5757\u5316\u3001\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002 \n\nCisco IOS XR Software\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-iosxr-evpn-dos",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-14701",
  "openTime": "2019-05-17",
  "patchDescription": "Cisco IOS XR Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684IOS\u8f6f\u4ef6\u7cfb\u5217\uff08\u5305\u62ecIOS T\u3001IOS S\u548cIOS XR\uff09\u4e2d\u7684\u4e00\u5957\u5b8c\u5168\u6a21\u5757\u5316\u3001\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002 \r\n\r\nCisco IOS XR Software\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco IOS XR Software\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-14701\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XR Software"
  },
  "referenceLink": "https://web.nvd.nist.gov//vuln/detail/CVE-2019-1849",
  "serverity": "\u4e2d",
  "submitTime": "2019-05-15",
  "title": "Cisco IOS XR Software\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-14701\uff09"
}

CVE-2019-1849 (GCVE-0-2019-1849)

Vulnerability from cvelistv5

Published

2019-05-16 01:20

Modified

2024-11-21 19:23

Severity ?

7.4 (High) - CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-754

Summary

A vulnerability in the Border Gateway Patrol (BGP) Multiprotocol Label Switching (MPLS)-based Ethernet VPN (EVPN) implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs when the affected software processes specific EVPN routing information. An attacker could exploit this vulnerability by injecting malicious traffic patterns into the targeted EVPN network. A successful exploit could result in a crash of the l2vpn_mgr process on Provider Edge (PE) device members of the same EVPN instance (EVI). On each of the affected devices, a crash could lead to system instability and the inability to process or forward traffic through the device, resulting in a DoS condition that would require manual intervention to restore normal operating conditions.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-iosxr-evpn-dos	vendor-advisory, x_refsource_CISCO
	http://www.securityfocus.com/bid/108342	vdb-entry, x_refsource_BID

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Version: unspecified < n/a

Show details on NVD website

JSON

To clipboard

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        "references": [
          {
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            "tags": [
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              "x_refsource_CISCO",
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-iosxr-evpn-dos"
          },
          {
            "name": "108342",
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        "title": "CVE Program Container"
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                  },
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                  }
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    "cna": {
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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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