CVE-2020-25710

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2020-25710
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-05-28 11:15:07 UTC
Updated2026-10-14 10:17:33 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

Problem Types: CWE-617 | CWE-617 CWE-617

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 33 All All All
Application Openldap Openldap All All All All
Operating System Redhat Enterprise Linux 5.0 All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Application Redhat Jboss Core Services - All All All
Application Redhat Jboss Enterprise Application Platform 5.0.0 All All All
Application Redhat Jboss Enterprise Web Server 2.0.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Openldap affected openldap 2.4.56 Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.0 V3.1.5 custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] [DLA 2481-1] openldap security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e69... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Debian -- Security Information -- DSA-4792-1 openldap af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
1899678 – (CVE-2020-25710) CVE-2020-25710 openldap: assertion failure in CSN normalization with invalid input af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
Prep for release (2.4.56) (ab391515) · Commits · openldap / OpenLDAP · GitLab af854a3a-2127-422b-91ae-364da2661108 git.openldap.org Patch, Vendor Advisory
June 2021 OpenLDAP Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450... af854a3a-2127-422b-91ae-364da2661108 lists.apache.org
Pony Mail! MITRE lists.apache.org
Pony Mail! MITRE lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159648 Oracle Enterprise Linux Security Update for openldap (ELSA-2022-0621)
  • 240099 Red Hat Update for openldap (RHSA-2022:0621)
  • 257157 CentOS Security Update for openldap (CESA-2022:0621)
  • 353210 Amazon Linux Security Advisory for openldap : ALAS2-2022-1770
  • 377255 Alibaba Cloud Linux Security Update for openldap (ALINUX2-SA-2022:0013)
  • 500480 Alpine Linux Security Update for openldap
  • 501458 Alpine Linux Security Update for openldap
  • 504238 Alpine Linux Security Update for openldap
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 670493 EulerOS Security Update for openldap (EulerOS-SA-2021-2251)
  • 670519 EulerOS Security Update for openldap (EulerOS-SA-2021-2277)
  • 670552 EulerOS Security Update for openldap (EulerOS-SA-2021-2310)
  • 670584 EulerOS Security Update for openldap (EulerOS-SA-2021-2342)
  • 670657 EulerOS Security Update for openldap (EulerOS-SA-2021-2415)
  • 671140 EulerOS Security Update for openldap (EulerOS-SA-2021-2602)
  • 750412 OpenSUSE Security Update for openldap2 (openSUSE-SU-2021:0107-1)
  • 750414 OpenSUSE Security Update for openldap2 (openSUSE-SU-2021:0102-1)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report