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...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-9287
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: 1456713 1458210
Blocks: 1456714
TreeView+ depends on / blocked
 
Reported: 2017-05-30 08:18 UTC by Adam Mariš
Modified: 2021-02-17 02:06 UTC (History)
16 users (show)

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.
Clone Of:
Environment:
Last Closed: 2019-06-08 03:13:37 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1852 0 normal SHIPPED_LIVE Moderate: openldap security, bug fix, and enhancement update 2017-08-01 18:22:49 UTC

Description Adam Mariš 2017-05-30 08:18:22 UTC 
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 08:18:51 UTC 
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1456713]
Comment 7 Dhiru Kholia 2017-06-05 12:41:01 UTC 
External References:

http://www.openldap.org/its/?findid=8655
Comment 10 Dhiru Kholia 2017-06-06 11:33:12 UTC 
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 20:19:52 UTC 
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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