Bug 2265139

Summary:	CVE-2023-46445 python-asyncssh: Rogue Extension Negotiation [epel-8]
Product:	[Fedora] Fedora EPEL	Reporter:	Carl George 🤠 <carl>
Component:	python-asyncssh	Assignee:	Georg Sauthoff <fedora>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	epel8	CC:	btarraso, carl, fedora, ktdreyer
Target Milestone:	---	Keywords:	Reopened, Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:	2250327	Environment:
Last Closed:	2025-03-10 23:22:09 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:	2250326

Description Carl George 🤠 2024-02-20 16:19:29 UTC

+++ This bug was initially created as a clone of Bug #2250327 +++


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

http://bugzilla.redhat.com/show_bug.cgi?id=2250326

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.

--- Additional comment from Borja Tarraso on 2023-11-17 18:22:28 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=2250326,2250327

# 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

--- Additional comment from Georg Sauthoff on 2023-12-21 12:32:58 UTC ---

Like in Fedora <= 38, a simple fix by update for this issue is blocked by upstream's python cryptography version requirements.

See also https://bugzilla.redhat.com/show_bug.cgi?id=2250331#c3 for details.

--- Additional comment from Carl George 🤠 on 2024-01-23 22:39:51 UTC ---

The upstream commit that fixes this CVE applies cleanly to version 2.13.2 in EPEL 9.  I've prepared that as a backport patch in this pull request.

https://src.fedoraproject.org/rpms/python-asyncssh/pull-request/6

The same commit does not apply cleanly to version 2.7.0 in EPEL 8, but we should at least resolve it in EPEL 9.