cnvd - cnvd-2015-01835

cnvd-2015-01835

Vulnerability from cnvd

Title: Xen提升权限漏洞

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 4.5.x之前的版权存在提升权限漏洞，允许本地攻击者利用漏洞通过设置DISPLAY环境变量使用SDL编译支持或连接到VNC服务器上获取访问权限。

Severity: 中

Formal description:

目前没有详细的解决方案： http://www.xenproject.org

Reference: http://www.securitytracker.com/id/1031919

Impacted products

Name
Xen Xen < 4.5.x

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "73068"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-2152"
    }
  },
  "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 4.5.x\u4e4b\u524d\u7684\u7248\u6743\u5b58\u5728\u63d0\u5347\u6743\u9650\u6f0f\u6d1e\uff0c\u5141\u8bb8\u672c\u5730\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u8bbe\u7f6eDISPLAY\u73af\u5883\u53d8\u91cf\u4f7f\u7528SDL\u7f16\u8bd1\u652f\u6301\u6216\u8fde\u63a5\u5230VNC\u670d\u52a1\u5668\u4e0a\u83b7\u53d6\u8bbf\u95ee\u6743\u9650\u3002",
  "discovererName": "Sander Eikelenboom",
  "formalWay": "\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u89e3\u51b3\u65b9\u6848\uff1a\r\nhttp://www.xenproject.org",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-01835",
  "openTime": "2015-03-20",
  "products": {
    "product": "Xen Xen \u003c 4.5.x"
  },
  "referenceLink": "http://www.securitytracker.com/id/1031919",
  "serverity": "\u4e2d",
  "submitTime": "2015-03-19",
  "title": "Xen\u63d0\u5347\u6743\u9650\u6f0f\u6d1e"
}

CVE-2015-2152 (GCVE-0-2015-2152)

Vulnerability from cvelistv5

Published

2015-03-18 16:00

Modified

2024-08-06 05:10

Severity ?

CWE

Summary

Xen 4.5.x and earlier enables certain default backends when emulating a VGA device for an x86 HVM guest qemu even when the configuration disables them, which allows local guest users to obtain access to the VGA console by (1) setting the DISPLAY environment variable, when compiled with SDL support, or connecting to the VNC server on (2) ::1 or (3) 127.0.0.1, when not compiled with SDL support.

References

▼	URL	Tags
	https://security.gentoo.org/glsa/201504-04	vendor-advisory, x_refsource_GENTOO
	http://www.securitytracker.com/id/1031919	vdb-entry, x_refsource_SECTRACK
	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html	vendor-advisory, x_refsource_FEDORA
	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html	vendor-advisory, x_refsource_FEDORA
	http://www.securityfocus.com/bid/73068	vdb-entry, x_refsource_BID
	http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html	vendor-advisory, x_refsource_FEDORA
	http://xenbits.xen.org/xsa/advisory-119.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html	vendor-advisory, x_refsource_SUSE
	http://www.securitytracker.com/id/1031806	vdb-entry, x_refsource_SECTRACK

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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            "tags": [
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            "x_refsource_SECTRACK"
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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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