Bug 2532938

Summary:	CVE-2026-90556 freeciv: Freeciv: Memory corruption via crafted savegame files [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vladimir Vasilev <vvasilev>
Component:	freeciv	Assignee:	Gwyn Ciesla <gwync>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	rawhide	CC:	gwync
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["eda2f66c-c078-484f-995b-0cda7a23f896"]}
Fixed In Version:	freeciv-3.2.6-1.fc45 freeciv-3.2.6-1.fc43 freeciv-3.2.6-1.fc44	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-09-19 00:17:11 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:	2532605

Description Vladimir Vasilev 2026-09-14 07:26:22 UTC

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.

Freeciv versions before 3.2.6 contain a heap buffer overflow in worklist_load() when processing savegame files with declared worklist lengths exceeding the fixed array bound of 64 elements. Attackers can craft malicious savegame files that write past the entries array into adjacent heap-allocated struct fields, potentially corrupting memory when a user or server operator loads the file.

Comment 1 Fedora Update System 2026-09-14 17:36:27 UTC

FEDORA-2026-6fe2310246 (freeciv-3.2.6-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6fe2310246

Comment 2 Fedora Update System 2026-09-14 17:36:43 UTC

FEDORA-2026-75bde5d061 (freeciv-3.2.6-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-75bde5d061

Comment 3 Fedora Update System 2026-09-14 17:36:52 UTC

FEDORA-2026-3b9c14cd66 (freeciv-3.2.6-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3b9c14cd66

Comment 4 Fedora Update System 2026-09-19 00:17:11 UTC

FEDORA-2026-6fe2310246 (freeciv-3.2.6-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 5 Fedora Update System 2026-09-19 00:58:16 UTC

FEDORA-2026-75bde5d061 (freeciv-3.2.6-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-09-19 01:14:21 UTC

FEDORA-2026-3b9c14cd66 (freeciv-3.2.6-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.