Bug 1456712 – CVE-2017-9287 openldap: Double free vulnerability in servers/slapd/back-mdb/search.c

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Bug 1456712 - (CVE-2017-9287) CVE-2017-9287 openldap: Double free vulnerability in servers/slapd/back-mdb/search.c

Summary:	CVE-2017-9287 openldap: Double free vulnerability in servers/slapd/back-mdb/s...

Status:	NEW

Aliases:	CVE-2017-9287

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20170517,repor...
Keywords:	Security

Depends On:	1456713 1458210
Blocks:	1456714
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Reported:	2017-05-30 04:18 EDT by Adam Mariš
Modified:	2018-05-14 07:57 EDT (History)
CC List:	16 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:	A double-free flaw was found in the way OpenLDAP's slapd server using the MDB backend handled LDAP searches. A remote attacker with access to search the directory could potentially use this flaw to crash slapd by issuing a specially crafted LDAP search query.
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CRM:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:1852	normal	SHIPPED_LIVE	Moderate: openldap security, bug fix, and enhancement update	2017-08-01 14:22:49 EDT

Groups: None (edit)

Description Adam Mariš 2017-05-30 04:18:22 EDT

servers/slapd/back-mdb/search.c in OpenLDAP through 2.4.44 is prone to a double free vulnerability. A user with access to search the directory can crash slapd by issuing a search including the Paged Results control with a page size of 0.

Upstream patch:

https://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commit;h=0cee1ffb6021b1aae3fcc9581699da1c85a6dd6e

Comment 1 Adam Mariš 2017-05-30 04:18:51 EDT

Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1456713]

Comment 7 Dhiru Kholia 2017-06-05 08:41:01 EDT

External References:

http://www.openldap.org/its/?findid=8655

Comment 10 Dhiru Kholia 2017-06-06 07:33:12 EDT

Statement:

This issue does not affect the versions of OpenLDAP as shipped with Red Hat Enterprise Linux 6 and 7 as they don't use the affected MDB backend in their default configurations. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 12 errata-xmlrpc 2017-08-01 16:19:52 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1852 https://access.redhat.com/errata/RHSA-2017:1852

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