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2 vulnerabilities by FluidSynth
CVE-2025-68617 (GCVE-0-2025-68617)
Vulnerability from cvelistv5 – Published: 2025-12-23 22:41 – Updated: 2025-12-24 14:53
VLAI?
Title
Use after free in fluidsynth
Summary
FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From versions 2.5.0 to before 2.5.2, a race condition during unloading of a DLS file can trigger a heap-based use-after-free. A concurrently running thread may be pending to unload a DLS file, leading to use of freed memory, if the synthesizer is being concurrently destroyed, or samples of the (unloaded) DLS file are concurrently used to synthesize audio. This issue has been patched in version 2.5.2. The problem will not occur, when explicitly unloading a DLS file (before synth destruction), provided that at the time of unloading, no samples of the respective file are used by active voices. The problem will not occur in versions of FluidSynth that have been compiled without native DLS support.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| FluidSynth | fluidsynth |
Affected:
>= 2.5.0, < 2.5.2
|
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CVE-2021-21417 (GCVE-0-2021-21417)
Vulnerability from cvelistv5 – Published: 2021-04-29 17:10 – Updated: 2024-08-03 18:09
VLAI?
Title
Use after free in fluidsynth
Summary
fluidsynth is a software synthesizer based on the SoundFont 2 specifications. A use after free violation was discovered in fluidsynth, that can be triggered when loading an invalid SoundFont file.
Severity ?
7.2 (High)
CWE
- CWE-416 - {"CWE-416":"Use After Free"}
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| FluidSynth | fluidsynth |
Affected:
< 2.1.8
|
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