cnvd-2016-01943
Vulnerability from cnvd

Title: QEMU拒绝服务漏洞（CNVD-2016-01943）

Description:

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

QEMU 1.6.0版本至2.3.1版本中存在安全漏洞。当程序使用‘address_space_translate’将地址映射到MemoryRegionSection时，攻击者可通过触发pci_dma_read/write调用利用该漏洞以提升的权限造成拒绝服务（越边界读写和虚拟机实例崩溃）。

Severity: 中

Patch Name: QEMU拒绝服务漏洞（CNVD-2016-01943）的补丁

Patch Description:

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

QEMU 1.6.0版本至2.3.1版本中存在安全漏洞。当程序使用‘address_space_translate’将地址映射到MemoryRegionSection时，攻击者可通过触发pci_dma_read/write调用利用该漏洞以提升的权限造成拒绝服务（越边界读写和虚拟机实例崩溃）。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:

目前厂商已经发布了升级补丁以修复此安全问题，详情请关注厂商主页： http://wiki.qemu.org/

Reference: ttps://access.redhat.com/security/cve/cve-2015-8817

Impacted products
Name
QEMU QEMU 1.6.0 - 2.3.1
Show details on source website

To clipboard 

{
  "cves": {
    "cve": [
      {
        "cveNumber": "CVE-2015-8818"
      },
      {
        "cveNumber": "CVE-2015-8817"
      }
    ]
  },
  "description": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU 1.6.0\u7248\u672c\u81f32.3.1\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528\u2018address_space_translate\u2019\u5c06\u5730\u5740\u6620\u5c04\u5230MemoryRegionSection\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e6\u53d1pci_dma_read/write\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u63d0\u5347\u7684\u6743\u9650\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u5199\u548c\u865a\u62df\u673a\u5b9e\u4f8b\u5d29\u6e83\uff09\u3002",
  "discovererName": "Donghai Zdh of Alibaba Inc.",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttp://wiki.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01943",
  "openTime": "2016-03-31",
  "patchDescription": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\nQEMU 1.6.0\u7248\u672c\u81f32.3.1\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528\u2018address_space_translate\u2019\u5c06\u5730\u5740\u6620\u5c04\u5230MemoryRegionSection\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u89e6\u53d1pci_dma_read/write\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u63d0\u5347\u7684\u6743\u9650\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u5199\u548c\u865a\u62df\u673a\u5b9e\u4f8b\u5d29\u6e83\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": "QEMU\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-01943\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 1.6.0 - 2.3.1"
  },
  "referenceLink": "ttps://access.redhat.com/security/cve/cve-2015-8817",
  "serverity": "\u4e2d",
  "submitTime": "2016-03-30",
  "title": "QEMU\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-01943\uff09"
}


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