Bug 2243328

Summary:	[Major Incident] CVE-2023-44487 varnish: HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Anten Skrabec <askrabec>
Component:	varnish	Assignee:	Ingvar Hagelund <ingvar>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	urgent
Version:	38	CC:	dridi.boukelmoune, ingvar, luhliari
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	varnish-7.4.2-1.fc40	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-11-14 11:15:36 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:	2242803

Description Anten Skrabec 2023-10-11 18:20:27 UTC

More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2242803

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Anten Skrabec 2023-10-11 18:20:29 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=2242803,2243328

# 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 Dridi Boukelmoune 2023-10-25 05:30:19 UTC

For f39 and f40, a new 7.3.1 and 7.4.2 releases should be available soon.

For f38, the patch series a817c266f0..990bf81472 from the 7.3 branch upstream applies free of conflicts to the 7.2 branch and should be trivial to apply as an RPM patch.

https://github.com/varnishcache/varnish-cache/pull/4011.patch

This appears to apply cleanly with `patch -p1 <4011.patch` on my machine.

Comment 3 Fedora Update System 2023-11-14 11:14:45 UTC

FEDORA-2023-2cc6f607b9 has been submitted as an update to Fedora 40. https://bodhi.fedoraproject.org/updates/FEDORA-2023-2cc6f607b9

Comment 4 Fedora Update System 2023-11-14 11:15:36 UTC

FEDORA-2023-2cc6f607b9 has been pushed to the Fedora 40 stable repository.
If problem still persists, please make note of it in this bug report.