UBUNTU-CVE-2022-28805

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    UBUNTU-CVE-2022-28805

    Published: 8 Apr 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2022-28805
    Aliases:
    USN-6916-1

    Summary:

    Details: singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

    References: https://ubuntu.com/security/CVE-2022-28805, https://lua-users.org/lists/lua-l/2022-02/msg00001.html, https://lua-users.org/lists/lua-l/2022-02/msg00070.html, https://www.cve.org/CVERecord?id=CVE-2022-28805, https://ubuntu.com/security/notices/USN-6916-1

    Affected packages

    Package

    Name: lua5.4

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/jammy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.4.4-1ubuntu0.1~esm1

    Affected versions

    5.4.2-2
    5.4.3-1
    5.4.4-1

    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
    UBUNTU-CVE-2022-28805 | CVE-DB