Vulnerability-Lookup

CNVD-2020-52846

Vulnerability from cnvd - Published: 2020-09-15

Title

Net-SNMP资源管理错误漏洞

Description

Net-SNMP是一套开源的简单网络管理协议（Simple Network Management Protocol）软件。该软件用于监控网络设备、电脑设备、UPS设备等。 Net-SNMP 5.8.1.pre1之前版本中的snmplib/snmpusm.c 文件的usm_free_usmStateReference存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。目前没有详细漏洞细节提供。

Severity

中

Patch Name

Net-SNMP资源管理错误漏洞的补丁

Patch Description

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://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-20892

Impacted products

Name
Net-SNMP Net-SNMP <5.8.1.pre1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20892"
    }
  },
  "description": "Net-SNMP\u662f\u4e00\u5957\u5f00\u6e90\u7684\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae\uff08Simple Network Management Protocol\uff09\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7528\u4e8e\u76d1\u63a7\u7f51\u7edc\u8bbe\u5907\u3001\u7535\u8111\u8bbe\u5907\u3001UPS\u8bbe\u5907\u7b49\u3002\n\nNet-SNMP 5.8.1.pre1\u4e4b\u524d\u7248\u672c\u4e2d\u7684snmplib/snmpusm.c \u6587\u4ef6\u7684usm_free_usmStateReference\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5bf9\u7cfb\u7edf\u8d44\u6e90\uff08\u5982\u5185\u5b58\u3001\u78c1\u76d8\u7a7a\u95f4\u3001\u6587\u4ef6\u7b49\uff09\u7684\u7ba1\u7406\u4e0d\u5f53\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\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://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-52846",
  "openTime": "2020-09-15",
  "patchDescription": "Net-SNMP\u662f\u4e00\u5957\u5f00\u6e90\u7684\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae\uff08Simple Network Management Protocol\uff09\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7528\u4e8e\u76d1\u63a7\u7f51\u7edc\u8bbe\u5907\u3001\u7535\u8111\u8bbe\u5907\u3001UPS\u8bbe\u5907\u7b49\u3002\r\n\r\nNet-SNMP 5.8.1.pre1\u4e4b\u524d\u7248\u672c\u4e2d\u7684snmplib/snmpusm.c \u6587\u4ef6\u7684usm_free_usmStateReference\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5bf9\u7cfb\u7edf\u8d44\u6e90\uff08\u5982\u5185\u5b58\u3001\u78c1\u76d8\u7a7a\u95f4\u3001\u6587\u4ef6\u7b49\uff09\u7684\u7ba1\u7406\u4e0d\u5f53\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\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": "Net-SNMP\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Net-SNMP Net-SNMP \u003c5.8.1.pre1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-20892",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-28",
  "title": "Net-SNMP\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2019-20892 (GCVE-0-2019-20892)

Vulnerability from cvelistv5 – Published: 2020-06-25 09:07 – Updated: 2024-08-05 02:53

Summary

net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/net-snm…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1663027	x_refsource_MISC
https://sourceforge.net/p/net-snmp/bugs/2923/	x_refsource_MISC
https://github.com/net-snmp/net-snmp/commit/5f881…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/06/25/4	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4410-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202008-12	vendor-advisoryx_refsource_GENTOO
https://www.oracle.com/security-alerts/cpujan2021.html	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T02:53:09.438Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1663027"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://sourceforge.net/p/net-snmp/bugs/2923/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9"
          },
          {
            "name": "[oss-security] 20200625 [cve-request@...re.org: Re: [scr916814] net-snmp - Perhaps only unreleased development versions; fix appears to be in v5.8.1.pre1]",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2020/06/25/4"
          },
          {
            "name": "USN-4410-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4410-1/"
          },
          {
            "name": "GLSA-202008-12",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202008-12"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-20T14:42:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1663027"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://sourceforge.net/p/net-snmp/bugs/2923/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9"
        },
        {
          "name": "[oss-security] 20200625 [cve-request@...re.org: Re: [scr916814] net-snmp - Perhaps only unreleased development versions; fix appears to be in v5.8.1.pre1]",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2020/06/25/4"
        },
        {
          "name": "USN-4410-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4410-1/"
        },
        {
          "name": "GLSA-202008-12",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202008-12"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-20892",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027",
              "refsource": "MISC",
              "url": "https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1663027",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1663027"
            },
            {
              "name": "https://sourceforge.net/p/net-snmp/bugs/2923/",
              "refsource": "MISC",
              "url": "https://sourceforge.net/p/net-snmp/bugs/2923/"
            },
            {
              "name": "https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9",
              "refsource": "MISC",
              "url": "https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9"
            },
            {
              "name": "[oss-security] 20200625 [cve-request@...re.org: Re: [scr916814] net-snmp - Perhaps only unreleased development versions; fix appears to be in v5.8.1.pre1]",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2020/06/25/4"
            },
            {
              "name": "USN-4410-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4410-1/"
            },
            {
              "name": "GLSA-202008-12",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202008-12"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-20892",
    "datePublished": "2020-06-25T09:07:42.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2024-08-05T02:53:09.438Z",
    "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-2020-52846

CVE-2019-20892 (GCVE-0-2019-20892)

Tags

Sightings

Nomenclature

Related by attack behaviour