cnvd-2015-07236
Vulnerability from cnvd
Title
Xen拒绝服务漏洞（CNVD-2015-07236）
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中存在安全漏洞，该漏洞源于程序报告未实现的超级调用时，没有限制printk控制台的消息数量。本地攻击者可借助一系列的HYPERVISOR_physdev_op或HYPERVISOR_hvm_op超级调用，利用该漏洞造成拒绝服务。以下版本受到影响：Xen 4.4.x版本，4.5.x版本，4.6.x版本。
Severity
低
Patch Name
Xen拒绝服务漏洞（CNVD-2015-07236）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中存在安全漏洞，该漏洞源于程序报告未实现的超级调用时，没有限制printk控制台的消息数量。本地攻击者可借助一系列的HYPERVISOR_physdev_op或HYPERVISOR_hvm_op超级调用，利用该漏洞造成拒绝服务。以下版本受到影响：Xen 4.4.x版本，4.5.x版本，4.6.x版本。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-146.html

Reference
http://xenbits.xen.org/xsa/advisory-146.html
Impacted products
Name
['Xen Xen 4.4.x', 'Xen Xen 4.5.x', 'Xen Xen 4.6.x']
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "77360"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7813"
    }
  },
  "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\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u62a5\u544a\u672a\u5b9e\u73b0\u7684\u8d85\u7ea7\u8c03\u7528\u65f6\uff0c\u6ca1\u6709\u9650\u5236printk\u63a7\u5236\u53f0\u7684\u6d88\u606f\u6570\u91cf\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4e00\u7cfb\u5217\u7684HYPERVISOR_physdev_op\u6216HYPERVISOR_hvm_op\u8d85\u7ea7\u8c03\u7528\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002\u4ee5\u4e0b\u7248\u672c\u53d7\u5230\u5f71\u54cd\uff1aXen 4.4.x\u7248\u672c\uff0c4.5.x\u7248\u672c\uff0c4.6.x\u7248\u672c\u3002",
  "discovererName": "Julien Grall of Citrix",
  "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-146.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07236",
  "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\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\nXen\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u62a5\u544a\u672a\u5b9e\u73b0\u7684\u8d85\u7ea7\u8c03\u7528\u65f6\uff0c\u6ca1\u6709\u9650\u5236printk\u63a7\u5236\u53f0\u7684\u6d88\u606f\u6570\u91cf\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4e00\u7cfb\u5217\u7684HYPERVISOR_physdev_op\u6216HYPERVISOR_hvm_op\u8d85\u7ea7\u8c03\u7528\uff0c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002\u4ee5\u4e0b\u7248\u672c\u53d7\u5230\u5f71\u54cd\uff1aXen 4.4.x\u7248\u672c\uff0c4.5.x\u7248\u672c\uff0c4.6.x\u7248\u672c\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-2015-07236\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Xen Xen 4.4.x",
      "Xen Xen  4.5.x",
      "Xen Xen 4.6.x"
    ]
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-146.html",
  "serverity": "\u4f4e",
  "submitTime": "2015-11-04",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07236\uff09"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.