Bug 2554074

Summary:	CVE-2026-111270 libmodplug: libmodplug: Denial of Service via heap-based out-of-bounds write in DSM parser [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Vladimir Vasilev <vvasilev>
Component:	libmodplug	Assignee:	Karel Volný <kvolny>
Status:	ON_QA ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel10	CC:	kvolny, sagitterghostproton.me
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["438e919e-02ae-488d-b71b-21dc7d204f80"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2553880

Description Vladimir Vasilev 2026-10-16 12:29:47 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.

libmodplug through 0.8.9.1 contains a heap-based out-of-bounds write in CSoundFile::ReadDSM() in src/load_dsm.cpp because nPat is never checked against MAX_PATTERNS. Attackers can supply a crafted DSM file with over 240 PATT chunks or a wrapping patt_len value to corrupt heap memory and crash the consuming process.

Comment 1 Fedora Update System 2026-10-20 10:39:20 UTC

FEDORA-EPEL-2026-8d3dae5e65 (libmodplug-0.8.9.0-26.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8d3dae5e65

Comment 2 Fedora Update System 2026-10-20 11:11:15 UTC

FEDORA-EPEL-2026-9b6d85f62d (libmodplug-0.8.9.0-14.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-9b6d85f62d

Comment 3 Fedora Update System 2026-10-21 02:29:13 UTC

FEDORA-EPEL-2026-8d3dae5e65 has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8d3dae5e65

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

Comment 4 Fedora Update System 2026-10-21 02:33:31 UTC

FEDORA-EPEL-2026-9b6d85f62d 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-2026-9b6d85f62d

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