Bug 2231222

Summary:	CVE-2023-33953 grpc: hpack table accounting errors can lead to denial of service [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Avinash Hanwate <ahanwate>
Component:	grpc	Assignee:	Ben Beasley <code>
Status:	ASSIGNED ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	38	CC:	code, dan.cermak
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2170404
Bug Blocks:	2230890

Description Avinash Hanwate 2023-08-11 04:56:30 UTC

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

http://bugzilla.redhat.com/show_bug.cgi?id=2230890

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 Avinash Hanwate 2023-08-11 04:56:33 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=2230890,2231222

# 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 Ben Beasley 2023-08-11 14:38:14 UTC

As is the case for bug 2214466 and bug 2214474, I am not aware of a self-contained patch that could be backported, and the only reasonable fix is to upgrade to a current version of grpc, as in [1]. This would be an ABI-incompatible upgrade.

Unfortunately, upgrading to versions of grpc after 1.48.x is blocked by the need to transition system-wide to protobuf v4 (releases 22.x, 23.x, etc.). Quite a bit of work has been done, but very many dependent packages are affected, and so far nobody has had time to drive that update to completion, including all the necessary work to make dependent packages compatible[2].

In short, I’m happy to fix this by upgrading grpc, but I will not be able to do that in stable releases, and I will not be able to do it in development releases until the protobuf 4 work is done – which I have been helping with when I have a chance, but do not have time to drive to timely completion.

[1] https://src.fedoraproject.org/rpms/grpc/pull-request/28
[2] https://src.fedoraproject.org/rpms/protobuf/pull-request/25