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Debian LTS Advisory DLA-2697-1                [email protected]
https://www.debian.org/lts/security/                    Thorsten Alteholz
June 29, 2021                                 https://wiki.debian.org/LTS
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Package        : fluidsynth
Version        : 1.1.6-4+deb9u1
CVE ID         : CVE-2021-28421

A vulnerbility has been found in fluidsynth, a real-time MIDI software 
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

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: https://wiki.debian.org/LTS