CVE-2021-21417

    Dashboard / Vulnerabilities / CVE-2021-21417

    CVE-2021-21417

    Published: 29 Apr 2021Last Modified: 9 Jul 2026

    Summary:

    Details: 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.

    References: https://github.com/FluidSynth/fluidsynth/security/advisories/GHSA-6fcq-pxhc-jxc9, https://lists.debian.org/debian-lts-announce/2021/06/msg00027.html, https://github.com/FluidSynth/fluidsynth/pull/810, https://github.com/FluidSynth/fluidsynth/issues/808

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -005719628aef0bd48dc7b2f860c7e4ca16b81044

    Affected versions

    v2.1.7
    v2.1.6
    v2.1.5
    v2.1.4
    v2.1.3
    v2.1.2
    v2.1.1
    v2.1.0
    v2.1.0.rc1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-21417 | CVE-DB