Bug 1545054

Summary:	CVE-2018-6952 patch: Double free of memory in pch.c:another_hunk() causes a crash [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Sam Fowler <sfowler>
Component:	patch	Assignee:	Tim Waugh <twaugh>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	27	CC:	agruenba, than, twaugh
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	patch-2.7.6-2.fc27 patch-2.7.6-5.fc28 patch-2.7.6-5.fc27 patch-2.7.6-7.fc29	Doc Type:	Release Note
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-10-15 10:46:59 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:	1545053

Description Sam Fowler 2018-02-14 07:19:43 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 Sam Fowler 2018-02-14 07:19:47 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=1545053,1545054

# 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 Than Ngo 2018-07-06 13:13:56 UTC

this issue is not fixed in patch-2.7.6-2.fc27 and still happen in latest patch version.

Comment 3 Andreas Gruenbacher 2018-08-21 11:56:18 UTC

This has been fixed upstream in commit 9c986353 "Fix swapping fake lines in pch_swap":
  http://git.savannah.gnu.org/cgit/patch.git/commit/?id=9c986353e420ead6e706262bf204d6e03322c300

Comment 4 Fedora Update System 2018-10-11 12:41:58 UTC

patch-2.7.6-5.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-d547a126e7

Comment 5 Fedora Update System 2018-10-11 12:42:09 UTC

patch-2.7.6-5.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-c255f16bfe

Comment 6 Fedora Update System 2018-10-11 14:40:30 UTC

patch-2.7.6-7.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-90af6f5b8a

Comment 7 Fedora Update System 2018-10-11 19:00:37 UTC

patch-2.7.6-7.fc29 has been pushed to the Fedora 29 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-2018-90af6f5b8a

Comment 8 Fedora Update System 2018-10-11 22:12:20 UTC

patch-2.7.6-5.fc27 has been pushed to the Fedora 27 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-2018-d547a126e7

Comment 9 Fedora Update System 2018-10-12 00:24:05 UTC

patch-2.7.6-5.fc28 has been pushed to the Fedora 28 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-2018-c255f16bfe

Comment 10 Fedora Update System 2018-10-15 10:46:59 UTC

patch-2.7.6-5.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2018-10-19 15:50:02 UTC

patch-2.7.6-5.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 Fedora Update System 2018-10-30 17:25:26 UTC

patch-2.7.6-7.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.