cnvd - cnvd-2016-01331

cnvd-2016-01331

Vulnerability from cnvd

Title: Xen拒绝服务漏洞（CNVD-2016-01331）

Description:

Xen是由剑桥大学开发的可用于Linux内核的一种虚拟化技术，允许同时运行多个操作系统。

Xen 4.6.x之前版本存在拒绝服务漏洞，允许远程攻击者通过带有不同的cachability设置的MMIO页面的多个映射利用该漏洞造成拒绝服务（主机重启）。

Severity: 中

Patch Name: Xen拒绝服务漏洞（CNVD-2016-01331）的补丁

Patch Description:

Xen是由剑桥大学开发的可用于Linux内核的一种虚拟化技术，允许同时运行多个操作系统。

Xen 4.6.x之前版本存在拒绝服务漏洞，允许远程攻击者通过带有不同的cachability设置的MMIO页面的多个映射利用该漏洞造成拒绝服务（主机重启）。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-154.html

Reference: http://xenbits.xen.org/xsa/advisory-154.html

Impacted products

Name
Xen Xen <=4.6.x

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-2270"
    }
  },
  "description": "Xen\u662f\u7531\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u53ef\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\nXen 4.6.x\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u5e26\u6709\u4e0d\u540c\u7684cachability\u8bbe\u7f6e\u7684MMIO\u9875\u9762\u7684\u591a\u4e2a\u6620\u5c04\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u91cd\u542f\uff09\u3002",
  "discovererName": "Jan Beulich of 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-154.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01331",
  "openTime": "2016-02-26",
  "patchDescription": "Xen\u662f\u7531\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u53ef\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\nXen 4.6.x\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u5e26\u6709\u4e0d\u540c\u7684cachability\u8bbe\u7f6e\u7684MMIO\u9875\u9762\u7684\u591a\u4e2a\u6620\u5c04\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u91cd\u542f\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": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-01331\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen \u003c=4.6.x"
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-154.html",
  "serverity": "\u4e2d",
  "submitTime": "2016-02-25",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-01331\uff09"
}

CVE-2016-2270 (GCVE-0-2016-2270)

Vulnerability from cvelistv5

Published

2016-02-19 16:00

Modified

2024-08-05 23:24

Severity ?

CWE

Summary

Xen 4.6.x and earlier allows local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings.

References

▼	URL	Tags
	http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html	x_refsource_CONFIRM
	http://www.debian.org/security/2016/dsa-3519	vendor-advisory, x_refsource_DEBIAN
	http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html	vendor-advisory, x_refsource_FEDORA
	http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html	vendor-advisory, x_refsource_FEDORA
	http://xenbits.xen.org/xsa/advisory-154.html	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1035042	vdb-entry, x_refsource_SECTRACK
	https://security.gentoo.org/glsa/201604-03	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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          },
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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