Vulnerability-Lookup

CNVD-2021-34716

Vulnerability from cnvd - Published: 2021-05-15

Title

Linux kernel权限提升漏洞（CNVD-2021-34716）

Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 5.12.2版本存在安全漏洞。Linux 内核中net/bluetooth/hci_request.c具有删除HCI控制器的竞争条件。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Linux kernel权限提升漏洞（CNVD-2021-34716）的补丁

Patch Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 5.12.2版本存在安全漏洞。Linux 内核中net/bluetooth/hci_request.c具有删除HCI控制器的竞争条件。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32399

Impacted products

Name
Linux Linux kernel 5.12.2

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32399"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 5.12.2\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002Linux \u5185\u6838\u4e2dnet/bluetooth/hci_request.c\u5177\u6709\u5220\u9664HCI\u63a7\u5236\u5668\u7684\u7ade\u4e89\u6761\u4ef6\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34716",
  "openTime": "2021-05-15",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 5.12.2\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002Linux \u5185\u6838\u4e2dnet/bluetooth/hci_request.c\u5177\u6709\u5220\u9664HCI\u63a7\u5236\u5668\u7684\u7ade\u4e89\u6761\u4ef6\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Linux kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-34716\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel 5.12.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32399",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-12",
  "title": "Linux kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-34716\uff09"
}

CVE-2021-32399 (GCVE-0-2021-32399)

Vulnerability from cvelistv5 – Published: 2021-05-10 21:19 – Updated: 2024-08-03 23:17

Summary

net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/torvalds/linux/commit/e2cb6b89…	x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torv…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/05/11/2	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021062…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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            "url": "https://security.netapp.com/advisory/ntap-20210622-0006/"
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          },
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            "tags": [
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          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
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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.

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.
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CNVD-2021-34716

CVE-2021-32399 (GCVE-0-2021-32399)

Tags

Sightings

Nomenclature

Related by attack behaviour