Bug 2366435

Summary:	CVE-2025-4638 zsync: Improper Pointer Arithmetic in pcl [fedora-42]
Product:	[Fedora] Fedora	Reporter:	Avinash Hanwate <ahanwate>
Component:	zsync	Assignee:	Tobias <t-fedora>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	42	CC:	t-fedora
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["ddd8b347-24b4-435f-801a-403d892f961e"]}
Fixed In Version:	zsync-0.6.2-3.fc43 zsync-0.6.2-3.fc42	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-05-15 18:35:09 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:	2366317

Description Avinash Hanwate 2025-05-15 06:11:53 UTC

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

https://bugzilla.redhat.com/show_bug.cgi?id=2366317

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 2025-05-15 18:30:30 UTC

FEDORA-2025-bcf8a956fa (zsync-0.6.2-3.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-bcf8a956fa

Comment 2 Fedora Update System 2025-05-15 18:35:09 UTC

FEDORA-2025-bcf8a956fa (zsync-0.6.2-3.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2025-05-15 18:42:55 UTC

FEDORA-2025-6f6043cb99 (zsync-0.6.2-3.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-6f6043cb99

Comment 4 Fedora Update System 2025-05-16 01:58:31 UTC

FEDORA-2025-6f6043cb99 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-2025-6f6043cb99`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-6f6043cb99

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

Comment 5 Fedora Update System 2025-05-23 03:25:28 UTC

FEDORA-2025-6f6043cb99 (zsync-0.6.2-3.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.