Vulnerability-Lookup

CNVD-2020-03216

Vulnerability from cnvd - Published: 2020-01-23

Title

Red Hat 389 Directory Server缓冲区溢出漏洞

Description

Red Hat 389 Directory Server是一款企业级的Linux目录服务器。 Red Hat 389 Directory Server存在缓冲区溢出漏洞，允许远程攻击者利用漏洞提交特殊的请求，进行拒绝服务攻击或者可能执行任意代码。

Severity

中

Patch Name

Red Hat 389 Directory Server缓冲区溢出漏洞的补丁

Patch Description

Red Hat 389 Directory Server是一款企业级的Linux目录服务器。 Red Hat 389 Directory Server存在缓冲区溢出漏洞，允许远程攻击者利用漏洞提交特殊的请求，进行拒绝服务攻击或者可能执行任意代码。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://directory.fedoraproject.org/

Reference

https://access.redhat.com/security/cve/cve-2019-3883

Impacted products

Name
Red Hat 389 Directory Server >=1.4.0.0，<1.4.1.3

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2019-3883"
    }
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03216",
  "openTime": "2020-01-23",
  "patchDescription": "Red Hat 389 Directory Server\u662f\u4e00\u6b3e\u4f01\u4e1a\u7ea7\u7684Linux\u76ee\u5f55\u670d\u52a1\u5668\u3002\r\n\r\nRed Hat 389 Directory Server\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u6216\u8005\u53ef\u80fd\u6267\u884c\u4efb\u610f\u4ee3\u7801\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",
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  "products": {
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  },
  "referenceLink": "https://access.redhat.com/security/cve/cve-2019-3883",
  "serverity": "\u4e2d",
  "submitTime": "2019-04-22",
  "title": "Red Hat 389 Directory Server\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2019-3883 (GCVE-0-2019-3883)

Vulnerability from cvelistv5 – Published: 2019-04-17 00:00 – Updated: 2024-08-04 19:19

Summary

In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.

Severity

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-772

Assigner

redhat redhat root

References

7 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2019…	mailing-list
https://access.redhat.com/errata/RHSA-2019:1896	vendor-advisory
https://access.redhat.com/errata/RHSA-2019:3401	vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…
https://pagure.io/389-ds-base/issue/50329
https://pagure.io/389-ds-base/pull-request/50331
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

1 product

Vendor	Product	Version
Red Hat	389-ds-base	Affected: affects up to 1.4.1.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T19:19:18.605Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[debian-lts-announce] 20190506 [SECURITY] [DLA 1779-1] 389-ds-base security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html"
          },
          {
            "name": "RHSA-2019:1896",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1896"
          },
          {
            "name": "RHSA-2019:3401",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3401"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pagure.io/389-ds-base/issue/50329"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pagure.io/389-ds-base/pull-request/50331"
          },
          {
            "name": "[debian-lts-announce] 20230424 [SECURITY] [DLA 3399-1] 389-ds-base security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "389-ds-base",
          "vendor": "Red Hat",
          "versions": [
            {
              "status": "affected",
              "version": "affects up to 1.4.1.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most \u0027ioblocktimeout\u0027 seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-772",
              "description": "CWE-772",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-04-24T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[debian-lts-announce] 20190506 [SECURITY] [DLA 1779-1] 389-ds-base security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html"
        },
        {
          "name": "RHSA-2019:1896",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1896"
        },
        {
          "name": "RHSA-2019:3401",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3401"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883"
        },
        {
          "url": "https://pagure.io/389-ds-base/issue/50329"
        },
        {
          "url": "https://pagure.io/389-ds-base/pull-request/50331"
        },
        {
          "name": "[debian-lts-announce] 20230424 [SECURITY] [DLA 3399-1] 389-ds-base security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2019-3883",
    "datePublished": "2019-04-17T00:00:00.000Z",
    "dateReserved": "2019-01-03T00:00:00.000Z",
    "dateUpdated": "2024-08-04T19:19:18.605Z",
    "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.

Detection rules are retrieved from Rulezet.

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.