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    CVE-2020-24370

    ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).

    Published:Jul 24, 2020
    Last Modified:May 5, 2025
    EPS:Aug 17, 2020
    EPSS Score:0.02009
    CVSS Score:5.3

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Lua
    Product
    Lua
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    http://lua-users.org/lists/lua-l/2020-07/msg00324.htmlhttp://lua-users.org/lists/lua-l/2020-07/msg00324.htmlhttps://github.com/RenukaSelvar/lua_CVE-2020-24370https://github.com/RenukaSelvar/lua_CVE-2020-24370_AfterPatch

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-128 Integer Attacks
    CAPEC-129 Pointer Manipulation

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    References

    http://lua-users.org/lists/lua-l/2020-07/msg00324.html
    https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b
    https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html
    https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ/
    http://lua-users.org/lists/lua-l/2020-07/msg00324.html
    https://github.com/lua/lua/commit/a585eae6e7ada1ca9271607a4f48dfb17868ab7b
    https://lists.debian.org/debian-lts-announce/2020/09/msg00019.html
    https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6KONNG6UEI3FMEOY67NDZC32NBGBI44/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXYMCIUNGK26VHAYHGP5LPW56G2KWOHQ/

    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