{
  "cveId": "CVE-2022-28805",
  "url": "https://patchblox.com/security/cve/CVE-2022-28805",
  "summary": "CVE-2022-28805 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2022-28805, released April 8, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "liblua5.4-0: singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call,...",
  "description": "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.",
  "published": "2022-04-07T23:15:00Z",
  "severity": "Medium",
  "cvss": 9.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.02976,
  "epssPercentile": 0.87344,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "liblua5.4-0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "5.4.4-1ubuntu0.1~esm1",
      "fix": "liblua5.4-0 5.4.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-liblua5.4-0-5.4.4-1ubuntu0.1-esm1",
      "released": "2022-07-01T05:15:00Z"
    },
    {
      "platform": "linux",
      "product": "lua",
      "release": "RHEL 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "RHSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua",
      "release": "almalinux 9",
      "fixedVersion": "5.4.4-3.el9",
      "fix": "ALSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua",
      "release": "ol 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "ELSA-2023-2582",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-2582",
      "released": "2023-05-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "RHSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-devel",
      "release": "almalinux 9",
      "fixedVersion": "5.4.4-3.el9",
      "fix": "ALSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-devel",
      "release": "ol 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "ELSA-2023-2582",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-2582",
      "released": "2023-05-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-libs",
      "release": "RHEL 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "RHSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-libs",
      "release": "almalinux 9",
      "fixedVersion": "5.4.4-3.el9",
      "fix": "ALSA-2023:2582",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-2582",
      "released": "2023-05-09T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua-libs",
      "release": "ol 9",
      "fixedVersion": "0:5.4.4-3.el9",
      "fix": "ELSA-2023-2582",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-2582",
      "released": "2023-05-15T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lua5.4",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.4.4-2",
      "fix": "DEBIAN-CVE-2022-28805",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-28805",
      "released": "2022-04-08T06:15:07Z"
    },
    {
      "platform": "linux",
      "product": "lua5.4",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.4.4-2",
      "fix": "DEBIAN-CVE-2022-28805",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-28805",
      "released": "2022-04-08T06:15:07Z"
    },
    {
      "platform": "linux",
      "product": "lua5.4",
      "release": "Debian 14",
      "fixedVersion": "5.4.4-2",
      "fix": "DEBIAN-CVE-2022-28805",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-28805",
      "released": "2022-04-08T06:15:07Z"
    },
    {
      "platform": "linux",
      "product": "lua5.4",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "5.4.4-1ubuntu0.1~esm1",
      "fix": "lua5.4 5.4.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-lua5.4-5.4.4-1ubuntu0.1-esm1",
      "released": "2022-07-01T05:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}