Description (CNA)
FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks * 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS file can supply a large connblocks value that wraps the expression and bypasses the chunk-size check, after which the parser performs approximately one billion 12-byte iterations beyond the chunk boundary. The excessive processing and invalid reads can cause denial of service. Builds with the CMake option enable-native-dls set to OFF do not expose the parser. This issue is fixed in version 2.5.6.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| FluidSynth / fluidsynth | affected >= 2.5.0, < 2.5.6 |
CWE
CWE-190
References
- https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-hp72-35pr-6h6r
- https://github.com/FluidSynth/fluidsynth/commit/4d7084fca7c876f5d738498b4917a39faf603425
- https://github.com/FluidSynth/fluidsynth/releases/tag/v2.5.6
ADP enrichment
No English description supplied.
No references supplied.