Bug 1527076 (CVE-2017-17740)

Summary:	CVE-2017-17740 openldap: contrib/slapd-modules/nops/nops.c attempts to free stack buffer allowing remote attackers to cause a denial of service
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bmaxwell, cdewolf, chazlett, csutherl, darran.lofthouse, dimitris, dosoudil, gzaronik, jawilson, jclere, jshepherd, jsynacek, lgao, mbabacek, mhonek, mturk, myarboro, pgier, pkis, psakar, pslavice, rmeggins, rnetuka, rsvoboda, security-response-team, twalsh, vtunka, weli, yjog
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:34:37 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1527078, 1527079
Bug Blocks:	1527081

Description Adam Mariš 2017-12-18 13:51:40 UTC

contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation.

Bug report:

https://www.openldap.org/its/index.cgi/Incoming?id=8759

Comment 1 Adam Mariš 2017-12-18 13:52:25 UTC

Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1527078]

Comment 7 Jason Shepherd 2018-02-18 22:43:44 UTC

JBoss EAP 5 is EOL so won't be receiving updates for moderate security issues.

Comment 8 Timothy Walsh 2018-04-23 10:43:54 UTC

JBoss Core Services and Web Server do not provide slapd and don't use the affected module.