Bug 2365690

Summary:	CVE-2025-47711 nbdkit: off-by-one error when processing block status may lead to a Denial of Service [fedora-40]
Product:	[Fedora] Fedora	Reporter:	Marco Benatto <mbenatto>
Component:	nbdkit	Assignee:	Richard W.M. Jones <rjones>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	40	CC:	eblake, rjones
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["2f1aff40-1b75-4c89-b94d-7d806b670f1e"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-05-22 13:32:09 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:	2365687

Description Marco Benatto 2025-05-12 17:18:25 UTC

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

https://bugzilla.redhat.com/show_bug.cgi?id=2365687

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 2025-05-12 21:08:24 UTC

FEDORA-2025-f6f7bd728c (nbdkit-1.38.6-1.fc40) has been submitted as an update to Fedora 40.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-f6f7bd728c

Comment 2 Aoife Moloney 2025-05-22 13:32:09 UTC

Fedora Linux 40 entered end-of-life (EOL) status on 2025-05-13.

Fedora Linux 40 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
please feel free to reopen this bug against that version. Note that the version
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the version field.

If you are unable to reopen this bug, please file a new report against an
active release.

Thank you for reporting this bug and we are sorry it could not be fixed.

Comment 3 Richard W.M. Jones 2025-05-22 13:43:53 UTC

This fix missed Fedora 40, however the fix is available already in Fedora 41+.