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    CVE-2021-44964

    Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.

    Published:Nov 29, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 14, 2022
    EPSS Score:0.00126
    CVSS Score:6.3

    Affected Products

    Vendor
    Lua
    Product
    Lua
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    http://lua-users.org/lists/lua-l/2021-11/msg00186.htmlhttp://lua-users.org/lists/lua-l/2021-12/msg00007.htmlhttps://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerabilityhttp://lua-users.org/lists/lua-l/2021-11/msg00186.htmlhttp://lua-users.org/lists/lua-l/2021-12/msg00007.htmlhttps://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-45985 (CVSS 7.5) — In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.…
    CVE-2022-33099 (CVSS 7.5) — An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursi…
    CVE-2022-28805 (CVSS 9.1) — singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup…
    CVE-2021-44647 (CVSS 5.5) — Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can…
    CVE-2021-43519 (CVSS 5.5) — Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of S…
    CVE-2021-32921 (CVSS 5.9) — An issue was discovered in Prosody before 0.11.9. It does not use a constant-time algorithm for comparing cert…
    CVE-2021-32918 (CVSS 7.5) — An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated d…
    CVE-2020-24369 (CVSS 7.5) — ldebug.c in Lua 5.4.0 attempts to access debug information via the line hook of a stripped function, leading t…
    CVE-2020-24370 (CVSS 5.3) — ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstra…
    CVE-2020-24371 (CVSS 5.3) — lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access…

    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