CVE-2021-21417

Use after free in fluidsynth

View on CVE.org

Published Apr 29, 2021 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

FluidSynth

fluidsynth

affected

Version	Status	Constraints
`< 2.1.8`	affected	—

Configuration 1 [-]

cpe:2.3:a:fluidsynth:fluidsynth:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-8704	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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.944% probability within 30 days)

Key SSVC decision points have not yet been added.

References

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

History

No history.

Subscriptions

Debian Debian Linux

Fluidsynth Fluidsynth

Weaknesses

CWE-416

Sources

CVE record Updated: Aug 3, 2024, 6:09 PM

Status: PUBLISHED
Assigner: GitHub_M
Published: Apr 29, 2021, 5:10 PM
Updated: Aug 3, 2024, 6:09 PM
Reserved: Dec 22, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:35 AM

Status: Modified
Published: Apr 29, 2021, 5:15 PM
Modified: Jun 17, 2026, 3:35 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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