Bug 1833535 (CVE-2020-12243) - CVE-2020-12243 openldap: denial of service via nested boolean expressions in LDAP search filters
Summary: CVE-2020-12243 openldap: denial of service via nested boolean expressions in ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-12243
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1833536 1838405 1838406
Blocks: 1833537
TreeView+ depends on / blocked
 
Reported: 2020-05-08 20:09 UTC by Guilherme de Almeida Suckevicz
Modified: 2026-05-14 17:49 UTC (History)
50 users (show)

Fixed In Version: openldap 2.4.50
Clone Of:
Environment:
Last Closed: 2020-09-29 22:00:46 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4041 0 None None None 2020-09-29 20:50:59 UTC

Description Guilherme de Almeida Suckevicz 2020-05-08 20:09:09 UTC 
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).

Reference:
https://bugs.openldap.org/show_bug.cgi?id=9202

Upstream commits:
https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGES
https://git.openldap.org/openldap/openldap/-/commit/98464c11df8247d6a11b52e294ba5dd4f0380440
Comment 1 Guilherme de Almeida Suckevicz 2020-05-08 20:09:59 UTC 
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1833536]
Comment 2 Kunjan Rathod 2020-05-11 00:23:12 UTC 
This vulnerability is out of security support scope for the following products:
 * Red Hat Enterprise Application Platform 5
 * Red Hat JBoss Enterprise Web Server 2

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.
Comment 7 errata-xmlrpc 2020-09-29 20:50:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4041 https://access.redhat.com/errata/RHSA-2020:4041
Comment 8 Product Security DevOps Team 2020-09-29 22:00:46 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12243
Comment 9 Jan Pazdziora (Red Hat) 2023-07-25 15:17:47 UTC 
Hello,

while doing review of the Vulnerability Assessment report of RHEL 8.6 for the purpose of Common Criteria certification, we came across this CVE-2020-12243. The CVE page https://access.redhat.com/security/cve/cve-2020-12243 lists RHEL 8 as Not affected.

Could a Statement be added to that CVE page that RHEL 8 is not affected because it does not ship slapd, similar to https://access.redhat.com/security/cve/cve-2020-36221?

Thank you, Jan
Comment 10 Petr Matousek 2023-08-10 11:29:29 UTC 
In reply to comment #9:
> Could a Statement be added to that CVE page that RHEL 8 is not affected

added statement
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