Debian Security Advisory

DLA-2697-1 fluidsynth -- LTS security update

Date Reported:
29 Jun 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2021-28421.
More information:

A vulnerbility has been found in fluidsynth, a real-time MIDI software synthesizer. Using a special crafted soundfont2 file, a use after free vulnerability might result in arbitrary code execution or a denial of service (DoS).

For Debian 9 stretch, this problem has been fixed in version 1.1.6-4+deb9u1.

We recommend that you upgrade your fluidsynth packages.

For the detailed security status of fluidsynth please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: