CNVD-2015-07567

Vulnerability from cnvd - Published: 2015-11-17
VLAI
Title
Xen对齐检查异常处理拒绝服务漏洞
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。 Xen处理对齐检查异常存在安全漏洞，允许32位guest用户触发该漏洞，进行拒绝服务攻击。
Severity
中
Patch Name
Xen对齐检查异常处理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。 Xen处理对齐检查异常存在安全漏洞，允许32位guest用户触发该漏洞，进行拒绝服务攻击。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

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： http://xenbits.xen.org/xsa/advisory-156.html

Reference
http://xenbits.xen.org/xsa/advisory-156.html
Impacted products
Name
['Xen Xen 4.4.x', 'Xen Xen 4.5.x', 'Xen Xen 4.6.x', 'Xen Xen 4.3.x']
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5307"
    }
  },
  "description": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen\u5904\u7406\u5bf9\u9f50\u68c0\u67e5\u5f02\u5e38\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb832\u4f4dguest\u7528\u6237\u89e6\u53d1\u8be5\u6f0f\u6d1e\uff0c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "discovererName": "Ben Serebrin from Google and Jan Beulich from SUSE",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-156.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07567",
  "openTime": "2015-11-17",
  "patchDescription": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen\u5904\u7406\u5bf9\u9f50\u68c0\u67e5\u5f02\u5e38\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb832\u4f4dguest\u7528\u6237\u89e6\u53d1\u8be5\u6f0f\u6d1e\uff0c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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": "Xen\u5bf9\u9f50\u68c0\u67e5\u5f02\u5e38\u5904\u7406\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Xen Xen 4.4.x",
      "Xen Xen  4.5.x",
      "Xen Xen 4.6.x",
      "Xen Xen 4.3.x"
    ]
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-156.html",
  "serverity": "\u4e2d",
  "submitTime": "2015-11-15",
  "title": "Xen\u5bf9\u9f50\u68c0\u67e5\u5f02\u5e38\u5904\u7406\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.


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.