Vulnerability-Lookup

CNVD-2015-07060

Vulnerability from cnvd - Published: 2015-10-30

Title

Xen权限提升漏洞（CNVD-2015-07060）

Description

Xen是一款开源的虚拟机，是实现云计算虚拟化的基础。 Xen3.4以前的版本存在权限提升漏洞。攻击者可提升权限控制整个系统，导致虚拟机逃逸，构成用户主机数据泄漏风险。

Severity

高

Patch Name

Xen权限提升漏洞（CNVD-2015-07060）的补丁

Patch Description

Xen是一款开源的虚拟机，是实现云计算虚拟化的基础。 Xen3.4以前的版本存在权限提升漏洞。攻击者可提升权限控制整个系统，导致虚拟机逃逸，构成用户主机数据泄漏风险。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

Xen官方已经推出针对该漏洞的修复补丁，建议尚未补丁升级的云服务使用该补丁修复漏洞。http://www.xenproject.org/

Reference

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7835 http://xenbits.xen.org/xsa/advisory-148.html

Impacted products

Name
Xenproject Xen <3.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7835"
    }
  },
  "description": "Xen\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\uff0c\u662f\u5b9e\u73b0\u4e91\u8ba1\u7b97\u865a\u62df\u5316\u7684\u57fa\u7840\u3002\r\n\r\nXen3.4\u4ee5\u524d\u7684\u7248\u672c\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u63d0\u5347\u6743\u9650\u63a7\u5236\u6574\u4e2a\u7cfb\u7edf\uff0c\u5bfc\u81f4\u865a\u62df\u673a\u9003\u9038\uff0c\u6784\u6210\u7528\u6237\u4e3b\u673a\u6570\u636e\u6cc4\u6f0f\u98ce\u9669\u3002",
  "discovererName": "\u683e\u5c1a\u806a (\u597d\u98ce) of Alibaba",
  "formalWay": "Xen\u5b98\u65b9\u5df2\u7ecf\u63a8\u51fa\u9488\u5bf9\u8be5\u6f0f\u6d1e\u7684\u4fee\u590d\u8865\u4e01\uff0c\u5efa\u8bae\u5c1a\u672a\u8865\u4e01\u5347\u7ea7\u7684\u4e91\u670d\u52a1\u4f7f\u7528\u8be5\u8865\u4e01\u4fee\u590d\u6f0f\u6d1e\u3002http://www.xenproject.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07060",
  "openTime": "2015-10-30",
  "patchDescription": "Xen\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u865a\u62df\u673a\uff0c\u662f\u5b9e\u73b0\u4e91\u8ba1\u7b97\u865a\u62df\u5316\u7684\u57fa\u7840\u3002 \r\n\r\nXen3.4\u4ee5\u524d\u7684\u7248\u672c\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u63d0\u5347\u6743\u9650\u63a7\u5236\u6574\u4e2a\u7cfb\u7edf\uff0c\u5bfc\u81f4\u865a\u62df\u673a\u9003\u9038\uff0c\u6784\u6210\u7528\u6237\u4e3b\u673a\u6570\u636e\u6cc4\u6f0f\u98ce\u9669\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\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2015-07060\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Xenproject Xen \u003c3.4"
  },
  "referenceLink": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7835\r\nhttp://xenbits.xen.org/xsa/advisory-148.html",
  "serverity": "\u9ad8",
  "submitTime": "2015-10-30",
  "title": "Xen\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2015-07060\uff09"
}

CVE-2015-7835 (GCVE-0-2015-7835)

Vulnerability from cvelistv5 – Published: 2015-10-30 15:00 – Updated: 2024-08-06 07:58

Summary

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

12 references

URL	Tags
http://support.citrix.com/article/CTX202404	x_refsource_CONFIRM
http://www.securityfocus.com/bid/77366	vdb-entryx_refsource_BID
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://xenbits.xen.org/xsa/advisory-148.html	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2015-1…	vendor-advisoryx_refsource_SUSE
https://github.com/QubesOS/qubes-secpack/blob/mas…	x_refsource_MISC
http://www.debian.org/security/2015/dsa-3390	vendor-advisoryx_refsource_DEBIAN
http://www.securitytracker.com/id/1034032	vdb-entryx_refsource_SECTRACK
http://lists.opensuse.org/opensuse-updates/2015-1…	vendor-advisoryx_refsource_SUSE
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/201604-03	vendor-advisoryx_refsource_GENTOO

Date Public

2015-10-29 00:00

Show details on NVD website

JSON

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.