Bug 838606

Summary:	enable PIE and RELRO in cifs-utils binaries
Product:	Red Hat Enterprise Linux 6	Reporter:	Jeff Layton <jlayton>
Component:	cifs-utils	Assignee:	Jeff Layton <jlayton>
Status:	CLOSED ERRATA	QA Contact:	Petr Beňas <pbenas>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.3	CC:	asn, jiali, pbenas, pstehlik, sprabhu, steved
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:	2013-02-21 10:14:53 UTC	Type:	Bug
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:
Bug Blocks:	846704

Description Jeff Layton 2012-07-09 14:54:13 UTC

Andreas got some errata tool package check warnings today when he was updating cifs-utils in the RHEL5 samba3x package:

07:14 <@asn> BAD         samba3x-client         File /sbin/mount.cifs lost GNU_RELRO security protection on i386 x86_64 ppc ppc64 s390 s390x
07:14 <@asn> BAD         samba3x-client         PIE regression for file sbin/mount.cifs on all architectures
07:14 <@asn> BAD         samba3x-client         File /usr/sbin/cifs.upcall lost GNU_RELRO security protection on i386 x86_64 ppc ppc64 s390 s390x
07:14 <@asn> BAD         samba3x-client         PIE regression for file usr/sbin/cifs.upcall on all architectures

It looks like we're not taking advantage of all of the handy compiler/linker features to make these binaries as safe as possible. In particular, we ought to enable PIE and RELRO support in them.

I've sent a patch upstream to add support for this there and we ought to pull this into RHEL6 as well. Note that we don't have any reason to believe that there is any specific vulnerability here, but it's sensible to enable these proactively.

Comment 1 Jeff Layton 2012-08-23 10:46:10 UTC

Fixed in cifs-utils-4.8.1-11.el6.

Comment 4 Petr Beňas 2012-10-08 11:13:05 UTC

Reproduced in cifs-utils-4.8.1-10.el6.x86_64 and verified in cifs-utils-4.8.1-11.el6.x86_64.

Comment 6 errata-xmlrpc 2013-02-21 10:14:53 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/RHBA-2013-0408.html