CVE-2017-9287

Publication date 29 May 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openldap	17.04 zesty	Fixed 2.4.44+dfsg-3ubuntu2.1
	16.10 yakkety	Fixed 2.4.42+dfsg-2ubuntu4.1
	16.04 LTS xenial	Fixed 2.4.42+dfsg-2ubuntu3.2
	14.04 LTS trusty	Fixed 2.4.31-1+nmu2ubuntu8.4

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

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

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3307-2
OpenLDAP vulnerability
19 July 2017

USN-3307-1
OpenLDAP vulnerability
1 June 2017

Other references

https://www.cve.org/CVERecord?id=CVE-2017-9287