GSD-2019-3883

Vulnerability from gsd - Updated: 2023-12-13 01:24
Details
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.
Aliases
Aliases
CVE-2019-3883
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{
  "GSD": {
    "alias": "CVE-2019-3883",
    "description": "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.",
    "id": "GSD-2019-3883",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-3883.html",
      "https://access.redhat.com/errata/RHSA-2019:3401",
      "https://access.redhat.com/errata/RHSA-2019:1896",
      "https://advisories.mageia.org/CVE-2019-3883.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2019-3883.html",
      "https://linux.oracle.com/cve/CVE-2019-3883.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-3883"
      ],
      "details": "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.",
      "id": "GSD-2019-3883",
      "modified": "2023-12-13T01:24:04.363371Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2019-3883",
        "STATE": "PUBLIC"
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      "affects": {
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          "vendor_data": [
            {
              "product": {
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                    "product_name": "389-ds-base",
                    "version": {
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            "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."
          }
        ]
      },
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      "references": {
        "reference_data": [
          {
            "name": "[debian-lts-announce] 20190506 [SECURITY] [DLA 1779-1] 389-ds-base security update",
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            "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html"
          },
          {
            "name": "RHSA-2019:1896",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:1896"
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            "name": "RHSA-2019:3401",
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            "url": "https://access.redhat.com/errata/RHSA-2019:3401"
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            "url": "https://pagure.io/389-ds-base/issue/50329"
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          },
          {
            "name": "[debian-lts-announce] 20230424 [SECURITY] [DLA 3399-1] 389-ds-base security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html"
          }
        ]
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    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.4.1.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
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            "children": [],
            "cpe_match": [
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            "children": [],
            "cpe_match": [
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          "ID": "CVE-2019-3883"
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        "description": {
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              "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."
            }
          ]
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3883"
            },
            {
              "name": "[debian-lts-announce] 20190506 [SECURITY] [DLA 1779-1] 389-ds-base security update",
              "refsource": "MLIST",
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              "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00008.html"
            },
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              "refsource": "REDHAT",
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                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:1896"
            },
            {
              "name": "RHSA-2019:3401",
              "refsource": "REDHAT",
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                "Third Party Advisory"
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              "url": "https://access.redhat.com/errata/RHSA-2019:3401"
            },
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            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-04-24T09:15Z",
      "publishedDate": "2019-04-17T14:29Z"
    }
  }
}


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  • 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.
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  • 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.



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