Bug 1703356

Summary:	CVE-2019-3843 systemd: services with DynamicUser can create SUID/SGID binaries [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Riccardo Schirone <rschiron>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	30	CC:	lnykryn, msekleta, ssahani, s, systemd-maint, zbyszek
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	systemd-241-8.git9ef65cb.fc30	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-04-29 01:41:45 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:	1684607

Description Riccardo Schirone 2019-04-26 08:41:12 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-all.

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.

Comment 1 Riccardo Schirone 2019-04-26 08:41:14 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

# low, medium, high, urgent (required)
severity=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1684607,1703356

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# 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 Zbigniew Jędrzejewski-Szmek 2019-04-26 10:57:44 UTC

I/We decided to only apply the patches for this to F30. Upstream we decided to treat
the issue as hardening. I backported the patches for v241-stable, but I think it's too
risky to backport them to v239-stable for F29, especially that the impact of this issue
is even lower in previous releases, since DynamicUser= is used even less there.

Comment 3 Fedora Update System 2019-04-26 11:30:52 UTC

systemd-241-8.git9ef65cb.fc30 has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2019-7322053e74

Comment 4 Fedora Update System 2019-04-27 22:30:27 UTC

systemd-241-8.git9ef65cb.fc30 has been pushed to the Fedora 30 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-2019-7322053e74

Comment 5 Fedora Update System 2019-04-29 01:41:45 UTC

systemd-241-8.git9ef65cb.fc30 has been pushed to the Fedora 30 stable repository. If problems still persist, please make note of it in this bug report.