CVE-2020-21041

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    CVE-2020-21041

    Published: 24 May 2021Last Modified: 17 Aug 2026

    Summary:

    Details: 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

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

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 3c1ecb057d7621e57968624aa15ad3e9efc819f7
    Fixed -None

    Affected versions

    4.1

    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-2020-21041 | CVE-DB