Vulnerability-Lookup

OESA-2021-1244 (CVE-2020-25710)

Vulnerability from osv_openeuler – Published: 2021-06-26 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

openldap security update

Details

OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools. LDAP is a set of protocols for accessing directory services (usually phone book style information, but other information is possible) over the Internet, similar to the way DNS (Domain Name System) information is propagated over the Internet. The openldap package contains configuration files, libraries, and documentation for OpenLDAP.

Security Fix(es):

A flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.(CVE-2020-25710)

Severity

7.5 (High)


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

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-25710	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "openldap-devel-2.4.50-6.oe1.aarch64.rpm",
          "openldap-servers-2.4.50-6.oe1.aarch64.rpm",
          "openldap-debuginfo-2.4.50-6.oe1.aarch64.rpm",
          "openldap-clients-2.4.50-6.oe1.aarch64.rpm",
          "openldap-debugsource-2.4.50-6.oe1.aarch64.rpm",
          "openldap-2.4.50-6.oe1.aarch64.rpm"
        ],
        "noarch": [
          "openldap-help-2.4.50-6.oe1.noarch.rpm"
        ],
        "src": [
          "openldap-2.4.50-6.oe1.src.rpm"
        ],
        "x86_64": [
          "openldap-debugsource-2.4.50-6.oe1.x86_64.rpm",
          "openldap-clients-2.4.50-6.oe1.x86_64.rpm",
          "openldap-2.4.50-6.oe1.x86_64.rpm",
          "openldap-devel-2.4.50-6.oe1.x86_64.rpm",
          "openldap-debuginfo-2.4.50-6.oe1.x86_64.rpm",
          "openldap-servers-2.4.50-6.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "openldap",
        "purl": "pkg:rpm/openEuler/openldap\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.50-6.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "OpenLDAP is an open source suite of LDAP (Lightweight Directory Access Protocol) applications and development tools. LDAP is a set of protocols for accessing directory services (usually phone book style information, but other information is possible) over the Internet, similar to the way DNS (Domain Name System) information is propagated over the Internet. The openldap package contains configuration files, libraries, and documentation for OpenLDAP.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in OpenLDAP in versions before 2.4.56. This flaw allows an attacker who sends a malicious packet processed by OpenLDAP to force a failed assertion in csnNormalize23(). The highest threat from this vulnerability is to system availability.(CVE-2020-25710)",
  "id": "OESA-2021-1244",
  "modified": "2026-08-06T11:04:29Z",
  "published": "2021-06-26T11:04:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1244"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25710"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "openldap security update",
  "upstream": [
    "CVE-2020-25710"
  ]
}

CVE-2020-25710 (GCVE-0-2020-25710)

Vulnerability from cvelistv5 – Published: 2021-05-28 10:20 – Updated: 2024-08-04 15:40

Summary

Severity

No CVSS data available.

CWE

CWE-617

Assigner

redhat redhat root

References

7 references

URL	Tags
https://www.debian.org/security/2020/dsa-4792	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1899678	x_refsource_MISC
https://git.openldap.org/openldap/openldap/-/comm…	x_refsource_MISC
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021071…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	openldap	Affected: openldap 2.4.56

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:40:36.750Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
            ],
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          },
          {
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            "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00008.html"
          },
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1899678"
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            "url": "https://git.openldap.org/openldap/openldap/-/commit/ab3915154e69920d480205b4bf5ccb2b391a0a1f#a2feb6ed0257c21c6672793ee2f94eaadc10c72c"
          },
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            "name": "[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8",
            "tags": [
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          },
          {
            "name": "[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8",
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          },
          {
            "tags": [
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            "url": "https://security.netapp.com/advisory/ntap-20210716-0003/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "openldap",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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            }
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        }
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      "problemTypes": [
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "openldap",
                      "version": {
                        "version_data": [
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                            "version_value": "openldap 2.4.56"
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    "datePublished": "2021-05-28T10:20:20.000Z",
    "dateReserved": "2020-09-16T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:40:36.750Z",
    "state": "PUBLISHED"
  },
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  "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.
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OESA-2021-1244 (CVE-2020-25710)

CVE-2020-25710 (GCVE-0-2020-25710)

Tags

Sightings

Nomenclature

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