Bug 1894567 (CVE-2020-25692) - CVE-2020-25692 openldap: NULL pointer dereference for unauthenticated packet in slapd
Summary: CVE-2020-25692 openldap: NULL pointer dereference for unauthenticated packet ...
Alias: CVE-2020-25692
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1895288 1895328
Blocks: 1894568
TreeView+ depends on / blocked
Reported: 2020-11-04 14:09 UTC by Guilherme de Almeida Suckevicz
Modified: 2024-06-13 23:20 UTC (History)
46 users (show)

Fixed In Version: openldap 2.4.55
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference flaw was found in the OpenLDAP server, during a request for renaming RDNs. This flaw allows a remote, unauthenticated attacker to crash the slapd process by sending a specially crafted request, causing a denial of service. The highest threat from this vulnerability is to system availability.
Clone Of:
Last Closed: 2021-04-27 16:46:34 UTC
spichugi: needinfo-

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2020-11-04 14:09:18 UTC
OpenLDAP slapd crashes on what seems to be a null-ptr-dereference after receiving a malicious TCP packet.


Comment 1 Cedric Buissart 2020-11-06 08:47:35 UTC
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1895288]

Comment 6 RaTasha Tillery-Smith 2020-12-08 15:55:26 UTC

This vulnerability affects the server side only. As a result, OpenLDAP client components, such as the component shipped in Red Hat Enterprise Linux 8, are not affected by this flaw.

Comment 10 errata-xmlrpc 2021-04-27 11:33:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:1389 https://access.redhat.com/errata/RHSA-2021:1389

Comment 11 Product Security DevOps Team 2021-04-27 16:46:34 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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