CVE-2020-21041

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Published May 24, 2021 CVSS 3.1 · 7.5 High EPSS 2.1% KEV · Not listed

Description

Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service

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

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-2742-1	ffmpeg security update
Debian DSA	DSA-4990-1	ffmpeg security update
EUVD	EUVD-2020-13820	Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service
Ubuntu USN	USN-5167-1	FFmpeg vulnerabilities
Ubuntu USN	USN-5472-1	FFmpeg vulnerabilities

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.1% (2.068% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
https://trac.ffmpeg.org/ticket/7989
https://www.debian.org/security/2021/dsa-4990

History

No history.

Subscriptions

Debian Debian Linux

Ffmpeg Ffmpeg

Weaknesses

CWE-120

Sources

CVE record Updated: Aug 4, 2024, 2:22 PM

Status: PUBLISHED
Assigner: mitre
Published: May 24, 2021, 5:31 PM
Updated: Aug 4, 2024, 2:22 PM
Reserved: Aug 13, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:03 AM

Status: Modified
Published: May 24, 2021, 6:15 PM
Modified: Jun 17, 2026, 3:03 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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