cnvd-2021-09295
Vulnerability from cnvd
Title
Cisco IOS XR拒绝服务漏洞（CNVD-2021-09295）
Description
Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。 Cisco IOS XR的IPv6协议处理存在拒绝服务漏洞。该漏洞源于该软件未正确转发具有IPv6节点本地多播组地址目标并在管理界面上接收的IPv6数据包。攻击者可利用该漏洞导致网络性能下降或拒绝服务。
Severity
中
Patch Name
Cisco IOS XR拒绝服务漏洞（CNVD-2021-09295）的补丁
Patch Description
Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。 Cisco IOS XR的IPv6协议处理存在拒绝服务漏洞。该漏洞源于该软件未正确转发具有IPv6节点本地多播组地址目标并在管理界面上接收的IPv6数据包。攻击者可利用该漏洞导致网络性能下降或拒绝服务。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-xripv6-spJem78K

Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-1268
Impacted products
Name
Cisco IOS XR
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1268",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1268"
    }
  },
  "description": "Cisco IOS XR\u8f6f\u4ef6\u662f\u7528\u4e8e\u670d\u52a1\u63d0\u4f9b\u5546\u7f51\u7edc\u7684\u6a21\u5757\u5316\u548c\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XR\u7684IPv6\u534f\u8bae\u5904\u7406\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u8f6f\u4ef6\u672a\u6b63\u786e\u8f6c\u53d1\u5177\u6709IPv6\u8282\u70b9\u672c\u5730\u591a\u64ad\u7ec4\u5730\u5740\u76ee\u6807\u5e76\u5728\u7ba1\u7406\u754c\u9762\u4e0a\u63a5\u6536\u7684IPv6\u6570\u636e\u5305\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f51\u7edc\u6027\u80fd\u4e0b\u964d\u6216\u62d2\u7edd\u670d\u52a1\u3002",
  "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-xripv6-spJem78K",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-09295",
  "openTime": "2021-02-05",
  "patchDescription": "Cisco IOS XR\u8f6f\u4ef6\u662f\u7528\u4e8e\u670d\u52a1\u63d0\u4f9b\u5546\u7f51\u7edc\u7684\u6a21\u5757\u5316\u548c\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XR\u7684IPv6\u534f\u8bae\u5904\u7406\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u8f6f\u4ef6\u672a\u6b63\u786e\u8f6c\u53d1\u5177\u6709IPv6\u8282\u70b9\u672c\u5730\u591a\u64ad\u7ec4\u5730\u5740\u76ee\u6807\u5e76\u5728\u7ba1\u7406\u754c\u9762\u4e0a\u63a5\u6536\u7684IPv6\u6570\u636e\u5305\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f51\u7edc\u6027\u80fd\u4e0b\u964d\u6216\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-09295\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XR"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1268",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-04",
  "title": "Cisco IOS XR\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-09295\uff09"
}


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