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Bug 723998

Summary:	Library needs partial RELRO support added
Product:	Red Hat Enterprise Linux 6	Reporter:	Steve Grubb <sgrubb>
Component:	acl	Assignee:	Kamil Dudka <kdudka>
Status:	CLOSED ERRATA	QA Contact:	Ondrej Moriš <omoris>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.1	CC:	mvadkert, omoris, ovasik, sct
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-12-06 16:37:39 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:

Description Steve Grubb 2011-07-21 17:20:03 UTC

Description of problem:
The acl package contains libraries. We would like them to be built with
partial RELRO support as a security enhancement.

Additional info:
Partial RELRO requires these passed at link:
-Wl,-z,relro

Comment 1 Kamil Dudka 2011-07-26 12:28:38 UTC

This will fix it:

Index: acl.spec
===================================================================
RCS file: /cvs/dist/rpms/acl/RHEL-6/acl.spec,v
retrieving revision 1.43
diff -u -p -r1.43 acl.spec
--- acl.spec    26 Jul 2011 12:16:51 -0000      1.43
+++ acl.spec    26 Jul 2011 12:26:53 -0000
@@ -62,7 +62,7 @@ autoconf
 %build
 touch .census
 # acl abuses libexecdir
-%configure --libdir=/%{_lib} --libexecdir=%{_libdir}
+%configure --libdir=/%{_lib} --libexecdir=%{_libdir} LDFLAGS="$LDFLAGS -Wl,-z,relro"
 make %{?_smp_mflags} LIBTOOL="libtool --tag=CC"
 
 %check

Comment 4 Ondrej Moriš 2011-08-03 22:25:51 UTC

Using aforementioned tool (rpm-chksec) on acl-2.2.49-6.el6, I've got:

FILE                                                    TYPE      RELRO    PIE 
/usr/bin/chacl                                          exec      partial  no  
/usr/bin/getfacl                                        exec      partial  no  
/usr/bin/setfacl                                        exec      partial  no 

Edo, Steve, I am not sure what is the meaning of this outcome, is this tool documented somewhere?

Comment 5 Steve Grubb 2011-08-03 23:45:14 UTC

The color coding help you interpret the results. :)

Comment 7 Kamil Dudka 2011-08-04 06:28:16 UTC

Ondrej, as for this bug, you need to check libacl in the first place.  That is the subpackage that provides the library.

Comment 11 errata-xmlrpc 2011-12-06 16:37:39 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHEA-2011-1657.html