Vulnerability-Lookup

CNVD-2020-52395

Vulnerability from cnvd - Published: 2020-09-17

Title

Linux kernel内存泄漏漏洞（CNVD-2020-52395）

Description

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux Kernel的以太网驱动程序存在内存泄漏漏洞。该漏洞源于以太网驱动程序从设备的EEPROM读取数据的方式存在问题。本地用户可利用该漏洞从内核内存中读取未初始化的值。

Severity

中

Patch Name

Linux kernel内存泄漏漏洞（CNVD-2020-52395）的补丁

Patch Description

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux Kernel的以太网驱动程序存在内存泄漏漏洞。该漏洞源于以太网驱动程序从设备的EEPROM读取数据的方式存在问题。本地用户可利用该漏洞从内核内存中读取未初始化的值。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

厂商已发布了漏洞修复程序，请及时关注更新： https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960702

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-14304

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14304",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-14304"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\n\nLinux Kernel\u7684\u4ee5\u592a\u7f51\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ee5\u592a\u7f51\u9a71\u52a8\u7a0b\u5e8f\u4ece\u8bbe\u5907\u7684EEPROM\u8bfb\u53d6\u6570\u636e\u7684\u65b9\u5f0f\u5b58\u5728\u95ee\u9898\u3002\u672c\u5730\u7528\u6237\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ece\u5185\u6838\u5185\u5b58\u4e2d\u8bfb\u53d6\u672a\u521d\u59cb\u5316\u7684\u503c\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960702",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-52395",
  "openTime": "2020-09-17",
  "patchDescription": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux Kernel\u7684\u4ee5\u592a\u7f51\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ee5\u592a\u7f51\u9a71\u52a8\u7a0b\u5e8f\u4ece\u8bbe\u5907\u7684EEPROM\u8bfb\u53d6\u6570\u636e\u7684\u65b9\u5f0f\u5b58\u5728\u95ee\u9898\u3002\u672c\u5730\u7528\u6237\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ece\u5185\u6838\u5185\u5b58\u4e2d\u8bfb\u53d6\u672a\u521d\u59cb\u5316\u7684\u503c\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\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\uff08CNVD-2020-52395\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14304",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-16",
  "title": "Linux kernel\u5185\u5b58\u6cc4\u6f0f\u6f0f\u6d1e\uff08CNVD-2020-52395\uff09"
}

CVE-2020-14304 (GCVE-0-2020-14304)

Vulnerability from cvelistv5 – Published: 2020-09-15 19:40 – Updated: 2024-08-04 12:39

Summary

A memory disclosure flaw was found in the Linux kernel's ethernet drivers, in the way it read data from the EEPROM of the device. This flaw allows a local user to read uninitialized values from the kernel memory. The highest threat from this vulnerability is to confidentiality.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-460

Assigner

redhat redhat root

References

2 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Linux Kernel	kernel	Affected: 5.6.7-1 Affected: 4.19.118-2 Affected: 4.9.210-1

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:39:36.607Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14304"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960702"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "Linux Kernel",
          "versions": [
            {
              "status": "affected",
              "version": "5.6.7-1"
            },
            {
              "status": "affected",
              "version": "4.19.118-2"
            },
            {
              "status": "affected",
              "version": "4.9.210-1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A memory disclosure flaw was found in the Linux kernel\u0027s ethernet drivers, in the way it read data from the EEPROM of the device. This flaw allows a local user to read uninitialized values from the kernel memory. The highest threat from this vulnerability is to confidentiality."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-460",
              "description": "CWE-460",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-15T19:40:44.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14304"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960702"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-14304",
    "datePublished": "2020-09-15T19:40:44.000Z",
    "dateReserved": "2020-06-17T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:39:36.607Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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.

Action not permitted

CNVD-2020-52395

CVE-2020-14304 (GCVE-0-2020-14304)

Tags

Sightings

Nomenclature

Related by attack behaviour