CVE-2020-18778

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    CVE-2020-18778

    Published: 23 Aug 2021Last Modified: 8 Jul 2026

    Summary:

    Details: In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_p_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

    References: https://bugzilla.libav.org/show_bug.cgi?id=1155, https://cwe.mitre.org/data/definitions/126.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- df744e3cf66548c9167ea857104a29d2ea92819e
    Fixed -None

    Affected versions

    12.3

    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-2020-18778 | CVE-DB