{
  "cveId": "CVE-2023-1393",
  "url": "https://patchblox.com/security/cve/CVE-2023-1393",
  "summary": "CVE-2023-1393 is fixed in 41 products on 1 platform, first by DSA-5380-1, released March 29, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tigervnc-server-module: Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment...",
  "description": "Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.\n\nSecurity Fix(es):\n\n* xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability (CVE-2023-1393)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2023-03-29T00:00:00Z",
  "severity": "important",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00383,
  "epssPercentile": 0.32535,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "tigervnc",
      "release": "RHEL 8",
      "fixedVersion": "0:1.12.0-9.el8_7.3",
      "fix": "RHSA-2023:1551",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-1551",
      "released": "2023-04-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tigervnc",
      "release": "RHEL 9",
      "fixedVersion": "0:1.12.0-5.el9_1.2",
      "fix": "RHSA-2023:1592",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2023-1592",
      "released": "2023-04-04T00:00:00Z"
    },
    {
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      "product": "tigervnc",
      "release": "almalinux 8",
      "fixedVersion": "1.12.0-9.el8_7.3",
      "fix": "ALSA-2023:1551",
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      "released": "2023-04-04T00:00:00Z"
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      "product": "tigervnc",
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      "fix": "ALSA-2023:1592",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-1592",
      "released": "2023-04-04T00:00:00Z"
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    {
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      "fix": "ELSA-2023-1551",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-1551",
      "released": "2023-04-04T00:00:00Z"
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    {
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      "fix": "ELSA-2023-1592",
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      "released": "2023-04-04T00:00:00Z"
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    {
      "platform": "linux",
      "product": "tigervnc",
      "release": "rocky 9",
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      "fix": "RLSA-2023:1592",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2023-1592",
      "released": "2023-04-06T15:24:04Z"
    },
    {
      "platform": "linux",
      "product": "tigervnc-common",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "fix": "tigervnc-common 1.10.1\u002Bdfsg-3ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tigervnc-common-1.10.1-dfsg-3ubuntu0.20.04.1",
      "released": "2023-03-29T05:00:00Z"
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    {
      "platform": "linux",
      "product": "tigervnc-common",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-tigervnc-common-1.12.0-dfsg-4ubuntu0.22.04.1",
      "released": "2023-03-29T05:00:00Z"
    },
    {
      "platform": "linux",
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      "released": "2023-04-04T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/alsa-2023-1551",
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    {
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      "released": "2023-04-04T00:00:00Z"
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    {
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      "fix": "ALSA-2023:1592",
      "url": "https://patchblox.com/security/fix/linux/alsa-2023-1592",
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    {
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      "fix": "ELSA-2023-1592",
      "url": "https://patchblox.com/security/fix/linux/elsa-2023-1592",
      "released": "2023-04-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tigervnc-scraping-server",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "released": "2023-03-29T05:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tigervnc-scraping-server",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-tigervnc-scraping-server-1.12.0-dfsg-4ubuntu0.22.04.1",
      "released": "2023-03-29T05:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tigervnc-selinux",
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      "released": "2023-04-04T00:00:00Z"
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    },
    {
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    },
    {
      "platform": "linux",
      "product": "xwayland",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "fix": "xwayland 2:22.1.1-1ubuntu0.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-xwayland-2-22.1.1-1ubuntu0.6",
      "released": "2023-03-29T05:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xwayland",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2:22.1.8-1ubuntu1",
      "fix": "xwayland 2:22.1.8-1ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-xwayland-2-22.1.8-1ubuntu1",
      "released": "2026-01-16T01:42:23Z"
    },
    {
      "platform": "linux",
      "product": "xwayland",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2:22.1.8-1ubuntu1",
      "fix": "xwayland 2:22.1.8-1ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-xwayland-2-22.1.8-1ubuntu1",
      "released": "2026-01-16T01:42:24Z"
    },
    {
      "platform": "linux",
      "product": "xwayland-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "fix": "xwayland-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.11",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xwayland-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.11",
      "released": "2023-03-29T05:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}