Bug 2550241

Summary: CVE-2026-108577 SDL3_sound: libmodplug: Denial of Service via excessive resource consumption in ABC music format parser [fedora-all]
Product: [Fedora] Fedora Reporter: Vladimir Vasilev <vvasilev>
Component: SDL3_soundAssignee: Multimedia SIG <multimedia-sig>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: dominik, multimedia-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["617b6a23-1aff-4b96-8b01-e5327331ffb4"]}
Fixed In Version: Doc Type: ---
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Clone Of: Environment:
Last Closed: 2026-10-13 08:31:14 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2549251    

Description Vladimir Vasilev 2026-10-13 07:34:58 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.

A vulnerability was determined in Konstanty Bialkowski libmodplug up to 0.8.9.1. This issue affects the function abc_add_gchord of the file src/load_abc.cpp of the component ABC Music Format Parser. This manipulation causes resource consumption. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Comment 1 Dominik 'Rathann' Mierzejewski 2026-10-13 08:31:14 UTC 
SDL_sound's libmodplug fork (https://github.com/icculus/SDL_sound/tree/main/src/libmodplug) does not include load_abc.cpp.