Vulnerability-Lookup

CNVD-2015-07244

Vulnerability from cnvd - Published: 2015-11-05

Title

Xen拒绝服务漏洞（CNVD-2015-07244）

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 3.2.x版本至4.6.x版本中存在安全漏洞，由于程序记录HYPERCALL_xenoprof_op和HYPERVISOR_xenpmu_op超级调用日志时未能限制printk控制台消息的数量。本地攻击者可利用该漏洞造成拒绝服务。

Severity

低

Patch Name

Xen拒绝服务漏洞（CNVD-2015-07244）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 3.2.x版本至4.6.x版本中存在安全漏洞，由于程序记录HYPERCALL_xenoprof_op和HYPERVISOR_xenpmu_op超级调用日志时未能限制printk控制台消息的数量。本地攻击者可利用该漏洞造成拒绝服务。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://xenbits.xen.org/xsa/advisory-152.html

Reference

http://xenbits.xen.org/xsa/advisory-152.html https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7971

Impacted products

Name
Xen Xen 3.2.x - 4.6.x

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-7971"
    }
  },
  "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 3.2.x\u7248\u672c\u81f34.6.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u8bb0\u5f55HYPERCALL_xenoprof_op\u548cHYPERVISOR_xenpmu_op\u8d85\u7ea7\u8c03\u7528\u65e5\u5fd7\u65f6\u672a\u80fd\u9650\u5236printk\u63a7\u5236\u53f0\u6d88\u606f\u7684\u6570\u91cf\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Xen",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-152.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07244",
  "openTime": "2015-11-05",
  "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 3.2.x\u7248\u672c\u81f34.6.x\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u7531\u4e8e\u7a0b\u5e8f\u8bb0\u5f55HYPERCALL_xenoprof_op\u548cHYPERVISOR_xenpmu_op\u8d85\u7ea7\u8c03\u7528\u65e5\u5fd7\u65f6\u672a\u80fd\u9650\u5236printk\u63a7\u5236\u53f0\u6d88\u606f\u7684\u6570\u91cf\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\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-2015-07244\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen 3.2.x - 4.6.x"
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-152.html\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7971",
  "serverity": "\u4f4e",
  "submitTime": "2015-11-04",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07244\uff09"
}

CVE-2015-7971 (GCVE-0-2015-7971)

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

Summary

Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
http://support.citrix.com/article/CTX202404	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securityfocus.com/bid/77363	vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-updates/2015-1…	vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2015/dsa-3414	vendor-advisoryx_refsource_DEBIAN
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/201604-03	vendor-advisoryx_refsource_GENTOO
http://www.securitytracker.com/id/1034035	vdb-entryx_refsource_SECTRACK
http://xenbits.xen.org/xsa/advisory-152.html	x_refsource_CONFIRM

Date Public

2015-10-29 00:00

Show details on NVD website

JSON

To clipboard

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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.