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CVE-2020-12243

Published: 28 April 2020

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
openldap
Launchpad, Ubuntu, Debian
upstream
Released (2.4.50)
bionic
Released (2.4.45+dfsg-1ubuntu1.5)
eoan
Released (2.4.48+dfsg-1ubuntu1.1)
focal
Released (2.4.49+dfsg-2ubuntu1.2)
trusty
Released (2.4.31-1+nmu2ubuntu8.5+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (2.4.42+dfsg-2ubuntu3.8)
Patches:
upstream: https://git.openldap.org/openldap/openldap/-/commit/d38d48fc8f572dedfb67b9da61a2ba3b125ced91
upstream: https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440 (2.4)

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