cnvd - cnvd-2021-19427

cnvd-2021-19427

Vulnerability from cnvd

Title: Linux kernel代码问题漏洞（CNVD-2021-19427）

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存在代码问题漏洞，攻击者可利用该漏洞可以通过DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC强制空指针解引用，从而触发拒绝服务。

Severity: 中

Formal description:

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://bugzilla.redhat.com/show_bug.cgi?id=1876995

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-25639

Impacted products

Name
Linux Linux kernel <5.12-rc1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-25639",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25639"
    }
  },
  "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\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u901a\u8fc7DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC\u5f3a\u5236\u7a7a\u6307\u9488\u89e3\u5f15\u7528\uff0c\u4ece\u800c\u89e6\u53d1\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1876995",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-19427",
  "openTime": "2021-03-19",
  "products": {
    "product": "Linux  Linux kernel \u003c5.12-rc1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25639",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-03",
  "title": "Linux kernel\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-19427\uff09"
}

CVE-2020-25639 (GCVE-0-2020-25639)

Vulnerability from cvelistv5

Published

2021-03-04 21:56

Modified

2024-08-04 15:40

Severity ?

CWE

CWE-476

Summary

A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1876995	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HE4CT3NL6OEBRRBUKHIX63GLNVOWCVRW/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/	vendor-advisory, x_refsource_FEDORA

Impacted products

	Vendor	Product	Version
	n/a	kernel	Version: Linux kernel versions prior to 5.12-rc1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:40:36.204Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876995"
          },
          {
            "name": "FEDORA-2021-1db4ab0a3d",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HE4CT3NL6OEBRRBUKHIX63GLNVOWCVRW/"
          },
          {
            "name": "FEDORA-2021-a2d3ad5dda",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux kernel versions prior to 5.12-rc1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A NULL pointer dereference flaw was found in the Linux kernel\u0027s GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-09T17:25:16",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876995"
        },
        {
          "name": "FEDORA-2021-1db4ab0a3d",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HE4CT3NL6OEBRRBUKHIX63GLNVOWCVRW/"
        },
        {
          "name": "FEDORA-2021-a2d3ad5dda",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2020-25639",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "kernel",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Linux kernel versions prior to 5.12-rc1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A NULL pointer dereference flaw was found in the Linux kernel\u0027s GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-476"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1876995",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1876995"
            },
            {
              "name": "FEDORA-2021-1db4ab0a3d",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HE4CT3NL6OEBRRBUKHIX63GLNVOWCVRW/"
            },
            {
              "name": "FEDORA-2021-a2d3ad5dda",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SUCBCKRHWP3UD2AVVYQJE7BIJEMCMXW5/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-25639",
    "datePublished": "2021-03-04T21:56:28",
    "dateReserved": "2020-09-16T00:00:00",
    "dateUpdated": "2024-08-04T15:40:36.204Z",
    "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.

Action not permitted