cnvd - cnvd-2021-43386

cnvd-2021-43386

Vulnerability from cnvd

Title: Linux kernel缓冲区溢出漏洞（CNVD-2021-43386）

Description:

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。

Linux kernel中存在缓冲区溢出漏洞。攻击者可利用该漏洞导致NFS客户端崩溃，可能影响数据保密性和完整性以及系统可用性。

Severity: 低

Patch Name: Linux kernel缓冲区溢出漏洞（CNVD-2021-43386）的补丁

Patch Description:

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。

Linux kernel中存在缓冲区溢出漏洞。攻击者可利用该漏洞导致NFS客户端崩溃，可能影响数据保密性和完整性以及系统可用性。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，详情请关注厂商主页： https://www.kernel.org/

Reference: https://access.redhat.com/security/cve/cve-2020-10742

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-10742"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4NFS\u5ba2\u6237\u7aef\u5d29\u6e83\uff0c\u53ef\u80fd\u5f71\u54cd\u6570\u636e\u4fdd\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u4ee5\u53ca\u7cfb\u7edf\u53ef\u7528\u6027\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43386",
  "openTime": "2021-06-19",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4NFS\u5ba2\u6237\u7aef\u5d29\u6e83\uff0c\u53ef\u80fd\u5f71\u54cd\u6570\u636e\u4fdd\u5bc6\u6027\u548c\u5b8c\u6574\u6027\u4ee5\u53ca\u7cfb\u7edf\u53ef\u7528\u6027\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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-43386\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel"
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  "referenceLink": "https://access.redhat.com/security/cve/cve-2020-10742",
  "serverity": "\u4f4e",
  "submitTime": "2020-05-15",
  "title": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-43386\uff09"
}

CVE-2020-10742 (GCVE-0-2020-10742)

Vulnerability from cvelistv5

Published

2021-06-02 10:42

Modified

2024-08-04 11:14

Severity ?

CWE

Buffer Overflow

Summary

A flaw was found in the Linux kernel. An index buffer overflow during Direct IO write leading to the NFS client to crash. In some cases, a reach out of the index after one memory allocation by kmalloc will cause a kernel panic. The highest threat from this vulnerability is to data confidentiality and system availability.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1835127	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	Kernel	Version: kernel 3.10.0

Show details on NVD website

JSON

To clipboard

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:14:14.961Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1835127"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "kernel 3.10.0"
            }
          ]
        }
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          "lang": "en",
          "value": "A flaw was found in the Linux kernel. An index buffer overflow during Direct IO write leading to the NFS client to crash. In some cases, a reach out of the index after one memory allocation by kmalloc will cause a kernel panic. The highest threat from this vulnerability is to data confidentiality and system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "Buffer Overflow",
              "lang": "en",
              "type": "text"
            }
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      "providerMetadata": {
        "dateUpdated": "2021-06-02T10:42:32",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1835127"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-10742",
    "datePublished": "2021-06-02T10:42:32",
    "dateReserved": "2020-03-20T00:00:00",
    "dateUpdated": "2024-08-04T11:14:14.961Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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