cnvd-2015-07243
Vulnerability from cnvd
Title
Xen拒绝服务漏洞（CNVD-2015-07243）
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。 Xen的arch/x86/mm/p2m-pod.c文件中的‘p2m_pod_emergency_sweep’函数存在安全漏洞。本地攻击者可借助特制的内存内容利用该漏洞造成拒绝服务（CPU资源消耗和重启）。
Severity
中
Patch Name
Xen拒绝服务漏洞（CNVD-2015-07243）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。 Xen的arch/x86/mm/p2m-pod.c文件中的‘p2m_pod_emergency_sweep’函数存在安全漏洞。本地攻击者可借助特制的内存内容利用该漏洞造成拒绝服务（CPU资源消耗和重启）。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-150.html

Reference
http://xenbits.xen.org/xsa/advisory-150.html https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7970
Impacted products
Name
['Xen Xen 4.5.x', 'Xen Xen 4.6.x']
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7970"
    }
  },
  "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\r\n\r\nXen\u7684arch/x86/mm/p2m-pod.c\u6587\u4ef6\u4e2d\u7684\u2018p2m_pod_emergency_sweep\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5185\u5b58\u5185\u5bb9\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08CPU\u8d44\u6e90\u6d88\u8017\u548c\u91cd\u542f\uff09\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-150.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07243",
  "openTime": "2015-11-05",
  "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\r\n\r\nXen\u7684arch/x86/mm/p2m-pod.c\u6587\u4ef6\u4e2d\u7684\u2018p2m_pod_emergency_sweep\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5185\u5b58\u5185\u5bb9\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08CPU\u8d44\u6e90\u6d88\u8017\u548c\u91cd\u542f\uff09\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-2015-07243\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Xen Xen  4.5.x",
      "Xen Xen 4.6.x"
    ]
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-150.html\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7970",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-04",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07243\uff09"
}


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