CNVD-2018-06513

Vulnerability from cnvd - Published: 2018-03-27
VLAI
Title
Qemu 'load_multiboot'函数任意代码执行漏洞
Description
QEMU(又名Quick Emulator)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中的hw/i386/multiboot.c文件的'load_multiboot'函数存在安全漏洞。本地攻击者可借助大于mh_bss_end_addr的mh_load_end_addr值利用该漏洞在QEMU主机上执行任意代码。
Severity
Patch Name
Qemu 'load_multiboot'函数任意代码执行漏洞的补丁
Patch Description
QEMU(又名Quick Emulator)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中的hw/i386/multiboot.c文件的'load_multiboot'函数存在安全漏洞。本地攻击者可借助大于mh_bss_end_addr的mh_load_end_addr值利用该漏洞在QEMU主机上执行任意代码。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

厂商已发布漏洞修复程序,请及时关注更新: https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html

Reference
https://www.securityfocus.com/bid/103181/info
Impacted products
Name
QEMU QEMU 0
Show details on source website

{
  "bids": {
    "bid": {
      "bidNumber": "103181"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-7550"
    }
  },
  "description": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\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\u4e2d\u7684hw/i386/multiboot.c\u6587\u4ef6\u7684\u0027load_multiboot\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5927\u4e8emh_bss_end_addr\u7684mh_load_end_addr\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u4e3b\u673a\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "Cyrille Chatras (Orange.com) and CERT-CC (Orange.com)",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lists.gnu.org/archive/html/qemu-devel/2018-02/msg06890.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06513",
  "openTime": "2018-03-27",
  "patchDescription": "QEMU\uff08\u53c8\u540dQuick Emulator\uff09\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\u4e2d\u7684hw/i386/multiboot.c\u6587\u4ef6\u7684\u0027load_multiboot\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5927\u4e8emh_bss_end_addr\u7684mh_load_end_addr\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u5728QEMU\u4e3b\u673a\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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 \u0027load_multiboot\u0027\u51fd\u6570\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "https://www.securityfocus.com/bid/103181/info",
  "serverity": "\u4e2d",
  "submitTime": "2018-03-01",
  "title": "Qemu \u0027load_multiboot\u0027\u51fd\u6570\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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