cnvd-2016-03898
Vulnerability from cnvd
Title
Xen拒绝服务漏洞（CNVD-2016-03898）
Description
Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.6.x及之前版本的libxl device-handling中存在安全漏洞。本地虚拟机端攻击者可通过操纵xenstore的虚拟机控制区域中的信息利用该漏洞造成拒绝服务（资源消耗或管理设备混淆）或获取主机操作系统权限。
Severity
中
Patch Name
Xen拒绝服务漏洞（CNVD-2016-03898）的补丁
Patch Description
Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.6.x及之前版本的libxl device-handling中存在安全漏洞。本地虚拟机端攻击者可通过操纵xenstore的虚拟机控制区域中的信息利用该漏洞造成拒绝服务（资源消耗或管理设备混淆）或获取主机操作系统权限。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此安全问题，补丁获取链接： http://xenbits.xen.org/xsa/advisory-175.html

Reference
http://www.securitytracker.com/id/1036023 http://xenbits.xen.org/xsa/advisory-175.html
Impacted products
Name
Xen Xen <=4.6.x
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "91006"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-4962"
    }
  },
  "description": "Xen\u662f\u82f1\u56fd\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\u76d1\u89c6\u5668\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u80fd\u591f\u4f7f\u4e0d\u540c\u548c\u4e0d\u517c\u5bb9\u7684\u64cd\u4f5c\u7cfb\u7edf\u8fd0\u884c\u5728\u540c\u4e00\u53f0\u8ba1\u7b97\u673a\u4e0a\uff0c\u5e76\u652f\u6301\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u8fc1\u79fb\uff0c\u4fdd\u8bc1\u6b63\u5e38\u8fd0\u884c\u5e76\u4e14\u907f\u514d\u5b95\u673a\u3002\r\n\r\nXen 4.6.x\u53ca\u4e4b\u524d\u7248\u672c\u7684libxl device-handling\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u865a\u62df\u673a\u7aef\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u64cd\u7eb5xenstore\u7684\u865a\u62df\u673a\u63a7\u5236\u533a\u57df\u4e2d\u7684\u4fe1\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d44\u6e90\u6d88\u8017\u6216\u7ba1\u7406\u8bbe\u5907\u6df7\u6dc6\uff09\u6216\u83b7\u53d6\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u6743\u9650\u3002",
  "discovererName": "Xen",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-175.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-03898",
  "openTime": "2016-06-12",
  "patchDescription": "Xen\u662f\u82f1\u56fd\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\u76d1\u89c6\u5668\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u80fd\u591f\u4f7f\u4e0d\u540c\u548c\u4e0d\u517c\u5bb9\u7684\u64cd\u4f5c\u7cfb\u7edf\u8fd0\u884c\u5728\u540c\u4e00\u53f0\u8ba1\u7b97\u673a\u4e0a\uff0c\u5e76\u652f\u6301\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u8fc1\u79fb\uff0c\u4fdd\u8bc1\u6b63\u5e38\u8fd0\u884c\u5e76\u4e14\u907f\u514d\u5b95\u673a\u3002\r\n\r\nXen 4.6.x\u53ca\u4e4b\u524d\u7248\u672c\u7684libxl device-handling\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u865a\u62df\u673a\u7aef\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u64cd\u7eb5xenstore\u7684\u865a\u62df\u673a\u63a7\u5236\u533a\u57df\u4e2d\u7684\u4fe1\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d44\u6e90\u6d88\u8017\u6216\u7ba1\u7406\u8bbe\u5907\u6df7\u6dc6\uff09\u6216\u83b7\u53d6\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u6743\u9650\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": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-03898\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen \u003c=4.6.x"
  },
  "referenceLink": "http://www.securitytracker.com/id/1036023\r\nhttp://xenbits.xen.org/xsa/advisory-175.html",
  "serverity": "\u4e2d",
  "submitTime": "2016-06-08",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-03898\uff09"
}


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