Bug 1982413

Summary:	CVE-2021-36740 varnish:6.0/varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	varnish	Assignee:	Ingvar Hagelund <ingvar>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	34	CC:	ingvar, luhliari, pgnet.dev
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	varnish-6.0-3320210717084350.601d93de varnish-6.0-3420210717084350.058368ca	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-26 00:21:36 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:	1982409

Description Guilherme de Almeida Suckevicz 2021-07-14 19:12:43 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 Guilherme de Almeida Suckevicz 2021-07-14 19:12:47 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

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

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1982409,1982413

# 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 Ingvar Hagelund 2021-07-16 22:10:42 UTC

I have produced FEDORA-2021-cf7585f0ca for f34, and set karma and stable days to default values (3 and 7) for now. As the change is a patch only for the vulnaribility, and the security is set to "high", I presume the test days option could be lowered. Advice, please.

Ingvar

https://bodhi.fedoraproject.org/updates/FEDORA-2021-cf7585f0ca

Comment 3 Ingvar Hagelund 2021-07-17 00:33:24 UTC

I forgot to update the abi and vrt caps, so I'll have to push another update for f34.

For f33, I just added patches, so no changes in abi or vrt, and FEDORA-2021-36e10d3f9f should ready for testing.

Rawhide is updated. That will probably break varnish-modules and other vmods in rawhide. I'll look at that soonish.

Ingvar

Comment 4 Fedora Update System 2021-07-17 19:05:41 UTC

FEDORA-MODULAR-2021-8c0ea03cf5 has been submitted as an update to Fedora 34 Modular. https://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-8c0ea03cf5

Comment 5 Fedora Update System 2021-07-17 19:05:42 UTC

FEDORA-MODULAR-2021-a6dfc20147 has been submitted as an update to Fedora 33 Modular. https://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-a6dfc20147

Comment 6 Fedora Update System 2021-07-18 01:32:38 UTC

FEDORA-MODULAR-2021-8c0ea03cf5 has been pushed to the Fedora 34 Modular testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-8c0ea03cf5

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2021-07-18 01:43:52 UTC

FEDORA-MODULAR-2021-a6dfc20147 has been pushed to the Fedora 33 Modular testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-MODULAR-2021-a6dfc20147

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Guilherme de Almeida Suckevicz 2021-07-19 17:59:12 UTC

(In reply to Ingvar Hagelund from comment #2)
> I have produced FEDORA-2021-cf7585f0ca for f34, and set karma and stable
> days to default values (3 and 7) for now. As the change is a patch only for
> the vulnaribility, and the security is set to "high", I presume the test
> days option could be lowered. Advice, please.
> 
> Ingvar
> 
> https://bodhi.fedoraproject.org/updates/FEDORA-2021-cf7585f0ca

Hi Ingvar, sorry but I don't know how is this process for Fedora.

Comment 9 Fedora Update System 2021-07-26 00:21:36 UTC

FEDORA-MODULAR-2021-a6dfc20147 has been pushed to the Fedora 33 Modular stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2021-07-26 00:33:42 UTC

FEDORA-MODULAR-2021-8c0ea03cf5 has been pushed to the Fedora 34 Modular stable repository.
If problem still persists, please make note of it in this bug report.