cnvd - cnvd-2021-43370

cnvd-2021-43370

Vulnerability from cnvd

Title: Linux kernel信息泄露漏洞（CNVD-2021-43370）

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存在安全漏洞，该漏洞允许本地用户从net/can/bcm.c中获取敏感信息，因为数据结构的某些部分是未初始化的。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: Linux kernel信息泄露漏洞（CNVD-2021-43370）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存在安全漏洞，该漏洞允许本地用户从net/can/bcm.c中获取敏感信息，因为数据结构的某些部分是未初始化的。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://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076@3c-app-gmx-bs04/T/

Reference: https://access.redhat.com/security/cve/cve-2021-34693

Impacted products

Name
Linux Linux kernel <5.10

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34693"
    }
  },
  "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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u672c\u5730\u7528\u6237\u4ecenet/can/bcm.c\u4e2d\u83b7\u53d6\u654f\u611f\u4fe1\u606f\uff0c\u56e0\u4e3a\u6570\u636e\u7ed3\u6784\u7684\u67d0\u4e9b\u90e8\u5206\u662f\u672a\u521d\u59cb\u5316\u7684\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://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076@3c-app-gmx-bs04/T/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43370",
  "openTime": "2021-06-19",
  "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\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u672c\u5730\u7528\u6237\u4ecenet/can/bcm.c\u4e2d\u83b7\u53d6\u654f\u611f\u4fe1\u606f\uff0c\u56e0\u4e3a\u6570\u636e\u7ed3\u6784\u7684\u67d0\u4e9b\u90e8\u5206\u662f\u672a\u521d\u59cb\u5316\u7684\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\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2021-43370\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c5.10"
  },
  "referenceLink": "https://access.redhat.com/security/cve/cve-2021-34693",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-17",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2021-43370\uff09"
}

CVE-2021-34693 (GCVE-0-2021-34693)

Vulnerability from cvelistv5

Published

2021-06-14 00:00

Modified

2024-08-04 00:19

Severity ?

CWE

Summary

net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.

References

▼	URL	Tags
	https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T/
	http://www.openwall.com/lists/oss-security/2021/06/15/1	mailing-list
	https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html	mailing-list
	https://www.debian.org/security/2021/dsa-4941	vendor-advisory
	https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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          "vendor": "n/a",
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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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