CNVD-2018-14348

Vulnerability from cnvd - Published: 2018-08-01
VLAI
Title
Qemu缓冲区溢出漏洞（CNVD-2018-14348）
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slirp/mbuf.c文件中的m_cat存在基于堆的缓冲区溢出漏洞，该漏洞源于程序未能正确的检测用户提交数据的长度，导致复制数据的大小超过了基于堆的固定长度缓冲区。远程攻击者可借助传入的数据包利用该漏洞执行任意代码。
Severity
低
Patch Name
Qemu缓冲区溢出漏洞（CNVD-2018-14348）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slirp/mbuf.c文件中的m_cat存在基于堆的缓冲区溢出漏洞，该漏洞源于程序未能正确的检测用户提交数据的长度，导致复制数据的大小超过了基于堆的固定长度缓冲区。远程攻击者可借助传入的数据包利用该漏洞执行任意代码。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/2018-06/msg01012.html

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-11806
Impacted products
Name
QEMU QEMU
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "104400"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-11806"
    }
  },
  "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\u7684slirp/mbuf.c\u6587\u4ef6\u4e2d\u7684m_cat\u5b58\u5728\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u68c0\u6d4b\u7528\u6237\u63d0\u4ea4\u6570\u636e\u7684\u957f\u5ea6\uff0c\u5bfc\u81f4\u590d\u5236\u6570\u636e\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u57fa\u4e8e\u5806\u7684\u56fa\u5b9a\u957f\u5ea6\u7f13\u51b2\u533a\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4f20\u5165\u7684\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "Jskz - Zero Day Initiative (trendmicro.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/2018-06/msg01012.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-14348",
  "openTime": "2018-08-01",
  "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\u7684slirp/mbuf.c\u6587\u4ef6\u4e2d\u7684m_cat\u5b58\u5728\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u68c0\u6d4b\u7528\u6237\u63d0\u4ea4\u6570\u636e\u7684\u957f\u5ea6\uff0c\u5bfc\u81f4\u590d\u5236\u6570\u636e\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u57fa\u4e8e\u5806\u7684\u56fa\u5b9a\u957f\u5ea6\u7f13\u51b2\u533a\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4f20\u5165\u7684\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-14348\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-11806",
  "serverity": "\u4f4e",
  "submitTime": "2018-06-14",
  "title": "Qemu\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-14348\uff09"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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.