CNVD-2015-02265

Vulnerability from cnvd - Published: 2015-04-09
VLAI
Title
Xen未明domctl操作拒绝服务漏洞
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。 当使用toolstack分解时Xen存在安全漏洞。允许部分管理控制的远程域通过未明domctl操作进行拒绝服务攻击。
Severity
高
Patch Name
Xen未明domctl操作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。当使用toolstack分解时Xen存在安全漏洞。允许部分管理控制的远程域通过未明domctl操作进行拒绝服务攻击。目前厂商已经发布了安全公告及相关补丁信息,修复了此安全问题。
Formal description

目前厂商已经发布了安全公告及相关补丁信息,修复了此安全问题,用户可参考如下补丁链接: http://xenbits.xen.org/xsa/advisory-127.html

Reference
http://xenbits.xen.org/xsa/advisory-127.html
Impacted products
Name
['Xen Xen 4.3', 'Xen Xen <=4.2']
Show details on source website

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-2751"
    }
  },
  "description": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f\uff0c\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\n\u5f53\u4f7f\u7528toolstack\u5206\u89e3\u65f6Xen\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5141\u8bb8\u90e8\u5206\u7ba1\u7406\u63a7\u5236\u7684\u8fdc\u7a0b\u57df\u901a\u8fc7\u672a\u660edomctl\u64cd\u4f5c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "discovererName": "Andrew Cooper of Citrix",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u8865\u4e01\u94fe\u63a5\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-127.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02265",
  "openTime": "2015-04-09",
  "patchDescription": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f\uff0c\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\u5f53\u4f7f\u7528toolstack\u5206\u89e3\u65f6Xen\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u5141\u8bb8\u90e8\u5206\u7ba1\u7406\u63a7\u5236\u7684\u8fdc\u7a0b\u57df\u901a\u8fc7\u672a\u660edomctl\u64cd\u4f5c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u5b89\u5168\u95ee\u9898\u3002",
  "patchName": "Xen\u672a\u660edomctl\u64cd\u4f5c\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Xen Xen 4.3",
      "Xen Xen \u003c=4.2"
    ]
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-127.html",
  "serverity": "\u9ad8",
  "submitTime": "2015-04-02",
  "title": "Xen\u672a\u660edomctl\u64cd\u4f5c\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}



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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

Author Source Type Date Other

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.

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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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