Bug 2298802

Summary:	CVE-2024-39844 znc: remote code execution via modtcl [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Robb Gatica <rgatica>
Component:	znc	Assignee:	Neil Hanlon <neil>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	epel8	CC:	cmm11, nb, rcallicotte
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["55daf565-545c-416e-8aeb-05828313adc8"]}
Fixed In Version:	znc-1.8.2-16.el8 znc-1.8.2-16.el9	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2025-05-21 00:32:56 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:	2295622

Description Robb Gatica 2024-07-18 22:50:30 UTC

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

https://bugzilla.redhat.com/show_bug.cgi?id=2295622

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 Admin user for bugzilla script actions 2024-08-22 18:54:22 UTC

This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component.

Comment 2 Fedora Admin user for bugzilla script actions 2024-08-26 01:57:34 UTC

This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component.

Comment 3 cmm11 2024-09-29 20:54:13 UTC

Hello is it possible to get version 1.9.1 packages for F40?
As it's been now over 2 months that znc-modtcl has had this RCE.

Comment 4 Robby Callicotte 2025-05-11 06:11:28 UTC

I have opened PRs for EPEL8/9.  These contain the backported fix for CVE-2024-39844.  Please see below:

https://src.fedoraproject.org/rpms/znc/pull-request/10
https://src.fedoraproject.org/rpms/znc/pull-request/9

Comment 5 Fedora Update System 2025-05-12 19:33:08 UTC

FEDORA-EPEL-2025-f3a22dfde8 (znc-1.8.2-16.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-f3a22dfde8

Comment 6 Fedora Update System 2025-05-12 19:33:09 UTC

FEDORA-EPEL-2025-ad4c7abaa9 (znc-1.8.2-16.el8) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-ad4c7abaa9

Comment 7 Fedora Update System 2025-05-13 02:11:28 UTC

FEDORA-EPEL-2025-ad4c7abaa9 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-ad4c7abaa9

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

Comment 8 Fedora Update System 2025-05-13 02:23:23 UTC

FEDORA-EPEL-2025-f3a22dfde8 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2025-f3a22dfde8

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

Comment 9 Fedora Update System 2025-05-21 00:32:56 UTC

FEDORA-EPEL-2025-ad4c7abaa9 (znc-1.8.2-16.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2025-05-21 00:51:56 UTC

FEDORA-EPEL-2025-f3a22dfde8 (znc-1.8.2-16.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.