cnvd-2017-01335
Vulnerability from cnvd
Title
Linux Kernel拒绝服务漏洞（CNVD-2017-01335）
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux kernel4.9.8及之前的版本中的arch/x86/kvm/vmx.c文件的nested_vmx_check_vmptr函数存在安全漏洞。虚拟机端的攻击者可利用该漏洞造成拒绝服务（主机操作系统内存消耗）。
Severity
中
Patch Name
Linux Kernel拒绝服务漏洞（CNVD-2017-01335）的补丁
Patch Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux kernel4.9.8及之前的版本中的arch/x86/kvm/vmx.c文件的nested_vmx_check_vmptr函数存在安全漏洞。虚拟机端的攻击者可利用该漏洞造成拒绝服务（主机操作系统内存消耗）。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： http://www.linux.org/

Reference
http://www.openwall.com/lists/oss-security/2017/01/31/4 http://www.securityfocus.com/bid/95878
Impacted products
Name
Linux Kernel <=4.9.8
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "95878"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-2596"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel4.9.8\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684arch/x86/kvm/vmx.c\u6587\u4ef6\u7684nested_vmx_check_vmptr\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u865a\u62df\u673a\u7aef\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u5b58\u6d88\u8017\uff09\u3002",
  "discovererName": "Dmitry Vyukov (Google In",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttp://www.linux.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-01335",
  "openTime": "2017-02-14",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel4.9.8\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684arch/x86/kvm/vmx.c\u6587\u4ef6\u7684nested_vmx_check_vmptr\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u865a\u62df\u673a\u7aef\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u5b58\u6d88\u8017\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": "Linux Kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-01335\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c=4.9.8"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2017/01/31/4\r\nhttp://www.securityfocus.com/bid/95878",
  "serverity": "\u4e2d",
  "submitTime": "2017-02-09",
  "title": "Linux Kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-01335\uff09"
}


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