Bug 2359705

Summary:	CVE-2025-3576 krb5: Kerberos RC4-HMAC-MD5 Checksum Vulnerability Enabling Message Spoofing via MD5 Collisions [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Sandipan Roy <saroy>
Component:	krb5	Assignee:	Julien Rische <jrische>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	41	CC:	abokovoy, antorres, ftrivino, jrische, j, sbose, ssorce
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["e390783d-d7ef-4add-a7e8-929cdacf5e59"]}
Fixed In Version:	krb5-1.21.3-6.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-06-06 14:17:04 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:	2359465

Description Sandipan Roy 2025-04-15 09:27:28 UTC

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

https://bugzilla.redhat.com/show_bug.cgi?id=2359465

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 Julien Rische 2025-04-15 09:31:28 UTC

*** Bug 2357212 has been marked as a duplicate of this bug. ***

Comment 2 Fedora Update System 2025-06-06 12:54:20 UTC

FEDORA-2025-1c915db8a5 (krb5-1.21.3-6.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-1c915db8a5

Comment 3 Fedora Update System 2025-06-06 14:17:04 UTC

FEDORA-2025-1c915db8a5 (krb5-1.21.3-6.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2025-06-06 15:10:11 UTC

FEDORA-2025-3de9fe91ff (krb5-1.21.3-6.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-3de9fe91ff

Comment 5 Fedora Update System 2025-06-07 08:25:53 UTC

FEDORA-2025-3de9fe91ff 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-2025-3de9fe91ff`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-3de9fe91ff

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

Comment 6 Fedora Update System 2025-06-09 02:35:13 UTC

FEDORA-2025-3de9fe91ff (krb5-1.21.3-6.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.