Bug 680121 (CVE-2011-1067)

Summary:	CVE-2011-1067 Directory Server: DoS via Simple Paged Results connections
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	nhosoi, rmeggins
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-04-19 16:58:57 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:	668619, 711513
Bug Blocks:

Description Jan Lieskovsky 2011-02-24 12:37:36 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2011-1067 to
the following vulnerability:

slapd (aka ns-slapd) in 389 Directory Server before 1.2.8.a2 does not
properly manage the c_timelimit field of the connection table element,
which allows remote attackers to cause a denial of service (daemon
outage) via Simple Paged Results connections, as demonstrated by using
multiple processes to replay TCP sessions, a different vulnerability
than CVE-2011-0019.

References:
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1067
[2] http://directory.fedoraproject.org/wiki/Release_Notes
[3] https://bugzilla.redhat.com/show_bug.cgi?id=668619

Comment 1 Tomas Hoger 2011-04-19 09:53:47 UTC

Relevant git commit:
http://git.fedorahosted.org/git/?p=389/ds.git;a=commitdiff;h=68d53e3

Rich, Noriko, did this affect RH Directory Server 8?

Comment 2 Rich Megginson 2011-04-19 13:17:42 UTC

(In reply to comment #1)
> Relevant git commit:
> http://git.fedorahosted.org/git/?p=389/ds.git;a=commitdiff;h=68d53e3
> 
> Rich, Noriko, did this affect RH Directory Server 8?

Yes, and we released an errata to fix this in rhds 8.2

Comment 3 Tomas Hoger 2011-04-19 14:47:53 UTC

(In reply to comment #2)
> > Rich, Noriko, did this affect RH Directory Server 8?
> 
> Yes, and we released an errata to fix this in rhds 8.2

I don't see the patch linked in comment #1 applied in the latest 8.2.4 packages from RHSA-2011:0293.  Part of it is not even applicable (there's no pagedresults_cleanup function).

Comment 4 Noriko Hosoi 2011-04-19 16:26:01 UTC

(In reply to comment #3)
> 
> I don't see the patch linked in comment #1 applied in the latest 8.2.4 packages
> from RHSA-2011:0293.  Part of it is not even applicable (there's no
> pagedresults_cleanup function).

Right.  This "Bug 668619 - slapd stops responding" was introduced by a preceding fix for 'Bug 567282 - server can not abandon searchRequest of "simple paged results"', which is not included in RHDS8.2.  Thus, 8.2 does not have this issue.

Comment 5 Tomas Hoger 2011-04-19 16:58:57 UTC

Thank you, Noriko!

Statement:

Not vulnerable. This issue did not affect Red Hat Directory Server 8 packages.