Bug 1455050

Summary:	CVE-2017-7494 samba: Loading shared modules from any path in the system leading to RCE (SambaCry) [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Huzaifa S. Sidhpurwala <huzaifas>
Component:	samba	Assignee:	Guenther Deschner <gdeschner>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	urgent
Version:	25	CC:	abokovoy, anoopcs, asn, awilliam, gdeschner, jarrpa, lists, lmohanty, madam, sbose, ssorce
Target Milestone:	---	Keywords:	Reopened, Security, SecurityTracking
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	AcceptedFreezeException
Fixed In Version:	samba-4.4.14-0.fc24 samba-4.5.10-0.fc25 samba-4.6.4-0.fc26	Doc Type:	Release Note
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-06-03 17:39:22 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:
Bug Blocks:	1349187, 1450347

Description Huzaifa S. Sidhpurwala 2017-05-24 07:22:18 UTC

This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.

For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.

For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs

When submitting as an update, use the fedpkg template provided in the next
comment(s).  This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.

Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.

NOTE: this issue affects multiple supported versions of Fedora. While only
one tracking bug has been filed, please correct all affected versions at
the same time.  If you need to fix the versions independent of each other,
you may clone this bug as appropriate.

[bug automatically created by: add-tracking-bugs]

Comment 1 Huzaifa S. Sidhpurwala 2017-05-24 07:22:35 UTC

Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1450347,1455050

# Description of your update
notes=Security fix for CVE-2017-7494

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 2 Fedora Update System 2017-05-24 08:16:52 UTC

samba-4.5.10-0.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-642a0eca75

Comment 3 Fedora Update System 2017-05-24 08:24:54 UTC

samba-4.4.14-0.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2017-570c0071c4

Comment 4 Fedora Update System 2017-05-24 17:28:40 UTC

samba-4.6.4-0.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-c729c6123c

Comment 5 Adam Williamson 2017-05-25 17:46:33 UTC

Proposing as an FE for Fedora 26 Beta, as a serious security issue we should not ship.

Comment 6 Fedora Update System 2017-05-25 19:21:34 UTC

samba-4.6.4-0.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-c729c6123c

Comment 7 Fedora Update System 2017-05-26 05:59:32 UTC

samba-4.4.14-0.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-570c0071c4

Comment 8 Fedora Update System 2017-05-26 06:02:18 UTC

samba-4.5.10-0.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-642a0eca75

Comment 9 Adam Williamson 2017-05-26 21:12:01 UTC

Discussed at 2017-05-25 Fedora 26 Beta Go/No-Go meeting, acting as a freeze exception review meeting: https://meetbot-raw.fedoraproject.org/fedora-meeting-2/2017-05-25/f26-beta-go-no-go-meeting.2017-05-25-17.00.html . Accepted as a freeze exception issue, as we definitely want to avoid shipping Beta with widely-publicized, significant security vulns.

Comment 10 Fedora Update System 2017-05-27 02:52:31 UTC

samba-4.4.14-0.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2017-05-27 03:01:32 UTC

samba-4.5.10-0.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 Adam Williamson 2017-05-27 06:16:39 UTC

Reopening as we're tracking this as an FE for F26.

Comment 13 Fedora Update System 2017-06-03 17:39:22 UTC

samba-4.6.4-0.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.