CyberRota Analysis
AI-GeneratedFluidSynth versions 1.1.2 to 2.5.6 are vulnerable due to a lack of bounds checking on the channel argument in the pitch_bend_range command, which can lead to out-of-bounds heap writes, resulting in denial of service or potential code execution. The vulnerability can be exploited remotely if the TCP server is enabled or locally via malicious commands in the FluidSynth shell. Organizations using FluidSynth in environments where the shell, command handler, or TCP server are active should prioritize upgrading to version 2.5.6 to mitigate this critical risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 1.1.2 until 2.5.6, the FluidSynth command handler accepts a pitch_bend_range command whose channel argument is not bounds checked before the supplied value is written through the selected synth channel. An out-of-range channel can therefore cause an out-of-bounds heap write, leading to denial of service or possible code execution. The issue is remotely reachable when the TCP server is enabled through new_fluid_server() or fluidsynth -s, and it is locally reachable through malicious commands delivered to the FluidSynth shell on standard input. Applications that do not use the shell, command handler, or TCP server are not affected. This issue is fixed in version 2.5.6.