CVE-2020-21697

    Dashboard / Vulnerabilities / CVE-2020-21697

    CVE-2020-21697

    Published: 10 Aug 2021Last Modified: 17 Aug 2026

    Summary:

    Details: A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.

    References: https://www.debian.org/security/2021/dsa-4998, https://trac.ffmpeg.org/ticket/8188

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 517573a67088b5c7a25c18373434e3448892ee93
    Fixed -None

    Affected versions

    4.2-NA

    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-2020-21697 | CVE-DB