{
  "cveId": "CVE-2023-40184",
  "url": "https://patchblox.com/security/cve/CVE-2023-40184",
  "summary": "CVE-2023-40184 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2023-40184, released August 30, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xrdp: xrdp is an open source remote desktop protocol (RDP) server",
  "description": "xrdp is an open source remote desktop protocol (RDP) server. In versions prior to 0.9.23 improper handling of session establishment errors allows bypassing OS-level session restrictions. The \u0060auth_start_session\u0060 function can return non-zero (1) value on, e.g., PAM error which may result in in session restrictions such as max concurrent sessions per user by PAM (ex ./etc/security/limits.conf) to be bypassed. Users (administrators) don\u0027t use restrictions by PAM are not affected. This issue has been addressed in release version 0.9.23. Users are advised to upgrade. There are no known workarounds for this issue.",
  "published": "2023-08-30T11:15:00Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00853,
  "epssPercentile": 0.58516,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xorgxrdp",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.9.5-2ubuntu0.1~esm2",
      "fix": "xorgxrdp 0.9.5-2ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xorgxrdp-0.9.5-2ubuntu0.1-esm2",
      "released": "2023-09-27T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "0.9.21.1-1~deb11u2",
      "fix": "DLA-4166-1",
      "url": "https://patchblox.com/security/fix/linux/dla-4166-1",
      "released": "2025-05-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.9.21.1-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-40184",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40184",
      "released": "2023-08-30T18:15:09Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.9.24-2",
      "fix": "DEBIAN-CVE-2023-40184",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40184",
      "released": "2023-08-30T18:15:09Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Debian 14",
      "fixedVersion": "0.9.24-2",
      "fix": "DEBIAN-CVE-2023-40184",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40184",
      "released": "2023-08-30T18:15:09Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.9.5-2ubuntu0.1~esm2",
      "fix": "xrdp 0.9.5-2ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xrdp-0.9.5-2ubuntu0.1-esm2",
      "released": "2023-09-27T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.9.12-1ubuntu0.1\u002Besm1",
      "fix": "xrdp 0.9.12-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xrdp-0.9.12-1ubuntu0.1-esm1",
      "released": "2023-09-27T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.9.17-2ubuntu2\u002Besm1",
      "fix": "xrdp 0.9.17-2ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-xrdp-0.9.17-2ubuntu2-esm1",
      "released": "2023-09-27T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.9.24-4ubuntu0.1~esm1",
      "fix": "xrdp 0.9.24-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-xrdp-0.9.24-4ubuntu0.1-esm1",
      "released": "2026-01-27T08:16:00Z"
    },
    {
      "platform": "linux",
      "product": "xrdp-pulseaudio-installer",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.9.5-2ubuntu0.1~esm2",
      "fix": "xrdp-pulseaudio-installer 0.9.5-2ubuntu0.1~esm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xrdp-pulseaudio-installer-0.9.5-2ubuntu0.1-esm2",
      "released": "2023-09-27T11:15:00Z"
    }
  ],
  "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"
  }
}