Bug 2362287

Summary:	CVE-2025-43859 python-h11: h11 accepts some malformed Chunked-Encoding bodies [fedora-42]
Product:	[Fedora] Fedora	Reporter:	Michal Findra <mfindra>
Component:	python-h11	Assignee:	Robby Callicotte <rcallicotte>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	42	CC:	carl, python-packagers-sig, rcallicotte
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["c418f5c1-d1cb-4753-8088-47bcdd8e5c99"]}
Fixed In Version:	python-h11-0.14.0-7.fc42	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-05-11 01:15:20 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:	2362162

Description Michal Findra 2025-04-25 10:55:14 UTC

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

https://bugzilla.redhat.com/show_bug.cgi?id=2362162

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 Fedora Update System 2025-05-02 02:40:19 UTC

FEDORA-2025-d1fffcc084 (python-h11-0.14.0-7.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-d1fffcc084

Comment 2 Fedora Update System 2025-05-03 02:49:48 UTC

FEDORA-2025-d1fffcc084 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-d1fffcc084`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-d1fffcc084

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

Comment 3 Fedora Update System 2025-05-11 01:15:20 UTC

FEDORA-2025-d1fffcc084 (python-h11-0.14.0-7.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.