cnvd - cnvd-2016-05534

cnvd-2016-05534

Vulnerability from cnvd

Title: Xen拒绝服务漏洞（CNVD-2016-05534）

Description:

Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。

Xen存在拒绝服务漏洞，使用PV模式x86 32位硬件平台的攻击者利用漏洞可触发安全检查，导致虚拟机程序崩溃，引起主机上的其他VMs拒绝服务。

Severity: 中

Patch Name: Xen拒绝服务漏洞（CNVD-2016-05534）的补丁

Patch Description:

Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。

Xen存在拒绝服务漏洞，使用PV模式x86 32位硬件平台的攻击者利用漏洞可触发安全检查，导致虚拟机程序崩溃，引起主机上的其他VMs拒绝服务。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:

厂商已发布了漏洞修复方案，请及时下载更新： http://www.xenproject.org/

Reference: http://xenbits.xen.org/xsa/advisory-183.html

Impacted products

Name
Xen Xen >4.4

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "92130"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-6259"
    }
  },
  "description": "Xen\u662f\u82f1\u56fd\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\u76d1\u89c6\u5668\u4ea7\u54c1\u3002 \r\n\r\nXen\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u4f7f\u7528PV\u6a21\u5f0fx86 32\u4f4d\u786c\u4ef6\u5e73\u53f0\u7684\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u89e6\u53d1\u5b89\u5168\u68c0\u67e5\uff0c\u5bfc\u81f4\u865a\u62df\u673a\u7a0b\u5e8f\u5d29\u6e83\uff0c\u5f15\u8d77\u4e3b\u673a\u4e0a\u7684\u5176\u4ed6VMs\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Andrew Cooper of Citrix",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u53ca\u65f6\u4e0b\u8f7d\u66f4\u65b0\uff1a \r\nhttp://www.xenproject.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-05534",
  "openTime": "2016-07-27",
  "patchDescription": "Xen\u662f\u82f1\u56fd\u5251\u6865\u5927\u5b66\u5f00\u53d1\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\u76d1\u89c6\u5668\u4ea7\u54c1\u3002 \r\n\r\nXen\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u4f7f\u7528PV\u6a21\u5f0fx86 32\u4f4d\u786c\u4ef6\u5e73\u53f0\u7684\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u89e6\u53d1\u5b89\u5168\u68c0\u67e5\uff0c\u5bfc\u81f4\u865a\u62df\u673a\u7a0b\u5e8f\u5d29\u6e83\uff0c\u5f15\u8d77\u4e3b\u673a\u4e0a\u7684\u5176\u4ed6VMs\u62d2\u7edd\u670d\u52a1\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-2016-05534\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen \u003e4.4"
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-183.html",
  "serverity": "\u4e2d",
  "submitTime": "2016-07-27",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-05534\uff09"
}

CVE-2016-6259 (GCVE-0-2016-6259)

Vulnerability from cvelistv5

Published

2016-08-02 16:00

Modified

2024-08-06 01:22

Severity ?

CWE

Summary

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.

References

▼	URL	Tags
	http://www.securityfocus.com/bid/92130	vdb-entry, x_refsource_BID
	http://support.citrix.com/article/CTX214954	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1036447	vdb-entry, x_refsource_SECTRACK
	http://xenbits.xen.org/xsa/xsa183-unstable.patch	x_refsource_CONFIRM
	http://xenbits.xen.org/xsa/advisory-183.html	x_refsource_CONFIRM
	http://xenbits.xen.org/xsa/xsa183-4.6.patch	x_refsource_CONFIRM

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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          },
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            "url": "http://support.citrix.com/article/CTX214954"
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            "url": "http://www.securitytracker.com/id/1036447"
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            "url": "http://xenbits.xen.org/xsa/xsa183-unstable.patch"
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            ],
            "url": "http://xenbits.xen.org/xsa/xsa183-4.6.patch"
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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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