CVE-2021-30027

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    CVE-2021-30027

    Published: 29 Apr 2021Last Modified: 9 Jul 2026

    Summary:

    Details: md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document.

    References: https://github.com/mity/md4c/issues/155, https://github.com/mity/md4c/commit/4fc808d8fe8d8904f8525bb4231d854f45e23a19

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- aa63198b80f999effed125b55ac16d1cbc9ab21c
    Fixed -None

    Affected versions

    0.4.7

    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-2021-30027 | CVE-DB