cnvd - cnvd-2024-30377

cnvd-2024-30377

Vulnerability from cnvd

Title: Linux kernel信息泄露漏洞（CNVD-2024-30377）

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存在信息泄露漏洞，该漏洞源于存在潜在的DMA映射泄露。攻击者可利用此漏洞获取敏感信息。

Severity: 低

Patch Name: Linux kernel信息泄露漏洞（CNVD-2024-30377）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存在信息泄露漏洞，该漏洞源于存在潜在的DMA映射泄露。攻击者可利用此漏洞获取敏感信息。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:

用户可联系供应商获得补丁信息： https://www.kernel.org/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-47064

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-47064"
    }
  },
  "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\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b58\u5728\u6f5c\u5728\u7684DMA\u6620\u5c04\u6cc4\u9732\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2024-30377",
  "openTime": "2024-07-04",
  "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\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b58\u5728\u6f5c\u5728\u7684DMA\u6620\u5c04\u6cc4\u9732\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2024-30377\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux  Linux kernel"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-47064",
  "serverity": "\u4f4e",
  "submitTime": "2024-03-04",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2024-30377\uff09"
}

CVE-2021-47064 (GCVE-0-2021-47064)

Vulnerability from cvelistv5

Published

2024-02-29 22:37

Modified

2025-05-04 07:03

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Summary

In the Linux kernel, the following vulnerability has been resolved: mt76: fix potential DMA mapping leak With buf uninitialized in mt76_dma_tx_queue_skb_raw, its field skip_unmap could potentially inherit a non-zero value from stack garbage. If this happens, it will cause DMA mappings for MCU command frames to not be unmapped after completion

References

▼	URL	Tags
	https://git.kernel.org/stable/c/9fa26701cd1fc4d932d431971efc5746325bdfce
	https://git.kernel.org/stable/c/9b68ce2856dadc0e1cb6fd21fbeb850da49efd08
	https://git.kernel.org/stable/c/91b9548d413fda488ea853cd1b9f59b572db3a0c
	https://git.kernel.org/stable/c/b4403cee6400c5f679e9c4a82b91d61aa961eccf

Impacted products

Vendor

Product

Version

▼

Linux

Version: 27d5c528a7ca08dcd44877fdd9fc08b76630bf77
Version: 27d5c528a7ca08dcd44877fdd9fc08b76630bf77
Version: 27d5c528a7ca08dcd44877fdd9fc08b76630bf77
Version: 27d5c528a7ca08dcd44877fdd9fc08b76630bf77

Linux

Version: 5.10

Show details on NVD website

JSON

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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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