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CVE-2021-27212

Published: 14 February 2021

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
openldap
Launchpad, Ubuntu, Debian
jammy
Released (2.4.57+dfsg-2ubuntu1)
impish
Released (2.4.57+dfsg-2ubuntu1)
trusty Needed

upstream
Released (2.4.57+dfsg-2)
bionic
Released (2.4.45+dfsg-1ubuntu1.10)
focal
Released (2.4.49+dfsg-2ubuntu1.7)
groovy
Released (2.4.53+dfsg-1ubuntu1.4)
hirsute
Released (2.4.57+dfsg-2ubuntu1)
xenial
Released (2.4.42+dfsg-2ubuntu3.13)
kinetic
Released (2.4.57+dfsg-2ubuntu1)
lunar
Released (2.4.57+dfsg-2ubuntu1)
mantic
Released (2.4.57+dfsg-2ubuntu1)
Patches:
upstream: https://git.openldap.org/openldap/openldap/-/commit/3539fc33212b528c56b716584f2c2994af7c30b0 (trunk)
upstream: https://git.openldap.org/openldap/openldap/-/commit/9badb73425a67768c09bcaed1a9c26c684af6c30 (REL_ENG 2.4.x)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H