CVE-2021-43519

    Dashboard / Vulnerabilities / CVE-2021-43519

    CVE-2021-43519

    Published: 9 Nov 2021Last Modified: 20 Oct 2026

    Summary:

    Details: Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/, http://lua-users.org/lists/lua-l/2021-11/msg00015.html, http://lua-users.org/lists/lua-l/2021-10/msg00123.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -063d4e4543088e7a21965bda8ee5a0f952a9029e

    Affected versions

    v5.4.3
    v5.4.2
    v5.4.1
    v5.4.0

    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