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CVE-2021-27212 Details

Description

In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://bugs.openldap.org/show_bug.cgi?id=9454	CVE	ExploitIssue TrackingVendor Advisory
https://git.openldap.org/openldap/openldap/-/commit/3539fc33212b528c56b716584f2c2994af7c30b0	CVE	PatchVendor Advisory
https://git.openldap.org/openldap/openldap/-/commit/9badb73425a67768c09bcaed1a9c26c684af6c30	CVE	PatchVendor Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	CVE
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	CVE
https://lists.debian.org/debian-lts-announce/2021/02/msg00035.html	CVE	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20210319-0005/	CVE	Third Party Advisory
https://www.debian.org/security/2021/dsa-4860	CVE	Third Party Advisory
https://bugs.openldap.org/show_bug.cgi?id=9454	[email protected]	ExploitIssue TrackingVendor Advisory
https://git.openldap.org/openldap/openldap/-/commit/3539fc33212b528c56b716584f2c2994af7c30b0	[email protected]	PatchVendor Advisory
https://git.openldap.org/openldap/openldap/-/commit/9badb73425a67768c09bcaed1a9c26c684af6c30	[email protected]	PatchVendor Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	[email protected]
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	[email protected]
https://lists.debian.org/debian-lts-announce/2021/02/msg00035.html	[email protected]	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20210319-0005/	[email protected]	Third Party Advisory
https://www.debian.org/security/2021/dsa-4860	[email protected]	Third Party Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-617	Reachable Assertion	[email protected]

Affected Products

Product	Versions
openldap openldap	<= 2.4.57 2.5.0 alpha 2.5.1 alpha
CPE cpe:2.3:a:openldap:openldap:::::::: cpe:2.3:a:openldap:openldap:2.5.0:alpha:::::: cpe:2.3:a:openldap:openldap:2.5.1:alpha:::::: Remediation No remediation found in references.
debian debian linux	9.0 10.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Sep 13, 2021	Modified Analysis	[email protected]
Jun 29, 2021	CVE Modified	[email protected]
Jun 28, 2021	CVE Modified	[email protected]
Mar 26, 2021	Modified Analysis	[email protected]
Mar 19, 2021	CVE Modified	[email protected]
Feb 22, 2021	Initial Analysis	[email protected]
Feb 22, 2021	CVE Modified	[email protected]
Feb 20, 2021	CVE Modified	[email protected]