Bug 1044099 (CVE-2013-6442)

Summary:	CVE-2013-6442 samba: smbcacls will delete ACL lists in certain circumstances
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abokovoy, asn, gdeschner, jkurik, pfrields, sbose, security-response-team
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:	2014-04-10 05:44:52 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:	1072804, 1073356, 1073913, 1075429
Bug Blocks:	1044102

Description Vincent Danen 2013-12-17 19:34:41 UTC

Samba upstream reports that:

Samba versions 4.0.0 and above have a flaw in the smbcacls command. If
smbcacls is used with the "-C|--chown name" or "-G|--chgrp name"
command options it will remove the existing ACL on the object being
modified, leaving the file or directory unprotected.

This issue can be worked around by using chown or similar tools to modify owners on files and directories.

Upstream bug: https://bugzilla.samba.org/show_bug.cgi?id=10327

Comment 5 Huzaifa S. Sidhpurwala 2014-03-12 06:12:19 UTC

Public via:

http://www.samba.org/samba/security/CVE-2013-6442

Comment 6 Huzaifa S. Sidhpurwala 2014-03-12 06:14:09 UTC

Created samba tracking bugs for this issue:

Affects: fedora-all [bug 1075429]

Comment 7 Fedora Update System 2014-03-15 15:15:23 UTC

samba-4.1.6-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Huzaifa S. Sidhpurwala 2014-03-24 04:51:34 UTC

Acknowledgements:

Red Hat would like to thank the Samba project for reporting this issue.
Upstream acknowledges Noel Power as the original reporter.

Comment 9 Fedora Update System 2014-03-28 03:18:26 UTC

samba-4.0.16-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 errata-xmlrpc 2014-04-09 17:43:31 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0383 https://rhn.redhat.com/errata/RHSA-2014-0383.html