cnvd-2015-03872
Vulnerability from cnvd
Title
Xen GNTTABOP_swap_grant_ref()版本检查拒绝服务漏洞
Description
Xen是一款用于Linux内核的一种虚拟化技术,允许同时运行多个操作系统。 Xen GNTTABOP_swap_grant_ref()存在安全漏洞，由于程序调用未能正确检查表授权操作的版本，允许本地用户利用漏洞触发空指针引用，使目标HOST崩溃。
Severity
中
Patch Name
Xen GNTTABOP_swap_grant_ref()版本检查拒绝服务漏洞的补丁
Patch Description
Xen是一款用于Linux内核的一种虚拟化技术,允许同时运行多个操作系统。 Xen GNTTABOP_swap_grant_ref()存在安全漏洞，由于程序调用未能正确检查表授权操作的版本，允许本地用户利用漏洞触发空指针引用，使目标HOST崩溃。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

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： http://xenbits.xen.org/xsa/advisory-134.html

Reference
http://xenbits.xen.org/xsa/advisory-134.html
Impacted products
Name
Xen Xen 4.2 - 4.5
Show details on source website

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{
  "bids": {
    "bid": {
      "bidNumber": "75141"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-4163"
    }
  },
  "description": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen GNTTABOP_swap_grant_ref()\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u8c03\u7528\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u8868\u6388\u6743\u64cd\u4f5c\u7684\u7248\u672c\uff0c\u5141\u8bb8\u672c\u5730\u7528\u6237\u5229\u7528\u6f0f\u6d1e\u89e6\u53d1\u7a7a\u6307\u9488\u5f15\u7528\uff0c\u4f7f\u76ee\u6807HOST\u5d29\u6e83\u3002",
  "discovererName": "Jan Beulich of SUSE.",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-134.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-03872",
  "openTime": "2015-06-19",
  "patchDescription": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen GNTTABOP_swap_grant_ref()\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u8c03\u7528\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u8868\u6388\u6743\u64cd\u4f5c\u7684\u7248\u672c\uff0c\u5141\u8bb8\u672c\u5730\u7528\u6237\u5229\u7528\u6f0f\u6d1e\u89e6\u53d1\u7a7a\u6307\u9488\u5f15\u7528\uff0c\u4f7f\u76ee\u6807HOST\u5d29\u6e83\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 GNTTABOP_swap_grant_ref()\u7248\u672c\u68c0\u67e5\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen 4.2 - 4.5"
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-134.html",
  "serverity": "\u4e2d",
  "submitTime": "2015-06-17",
  "title": "Xen GNTTABOP_swap_grant_ref()\u7248\u672c\u68c0\u67e5\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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  • 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.
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