{
  "cveId": "CVE-2023-40890",
  "url": "https://patchblox.com/security/cve/CVE-2023-40890",
  "summary": "CVE-2023-40890 is fixed in 9 products on 1 platform, first by libbarcode-zbar-perl 0.23-1.3ubuntu0.1~esm1, released August 29, 2023. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "zbar: A stack-based buffer overflow vulnerability exists in the lookup_sequence function of ZBar 0.23.90",
  "description": "A stack-based buffer overflow vulnerability exists in the lookup_sequence function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution. To trigger this vulnerability, an attacker can digitally input the malicious QR code, or prepare it to be physically scanned by the vulnerable scanner.",
  "published": "2023-08-29T10:15:00Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.01946,
  "epssPercentile": 0.80323,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libbarcode-zbar-perl",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "libbarcode-zbar-perl 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libbarcode-zbar-perl-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libbarcode-zbar-perl",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "libbarcode-zbar-perl 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libbarcode-zbar-perl-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbar0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "libzbar0 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libzbar0-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbar0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "libzbar0 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzbar0-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbargtk0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "libzbargtk0 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libzbargtk0-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbargtk0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "libzbargtk0 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzbargtk0-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbarqt0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "libzbarqt0 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libzbarqt0-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libzbarqt0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "libzbarqt0 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libzbarqt0-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-zbar",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "python3-zbar 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-zbar-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-zbar",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "python3-zbar 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-python3-zbar-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbar",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.23.92-7\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-40890",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40890",
      "released": "2023-08-29T17:15:12Z"
    },
    {
      "platform": "linux",
      "product": "zbar",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.23.92-9",
      "fix": "DEBIAN-CVE-2023-40890",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40890",
      "released": "2023-08-29T17:15:12Z"
    },
    {
      "platform": "linux",
      "product": "zbar",
      "release": "Debian 14",
      "fixedVersion": "0.23.92-9",
      "fix": "DEBIAN-CVE-2023-40890",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40890",
      "released": "2023-08-29T17:15:12Z"
    },
    {
      "platform": "linux",
      "product": "zbar-tools",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "zbar-tools 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zbar-tools-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbar-tools",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "zbar-tools 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zbar-tools-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbarcam-gtk",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "zbarcam-gtk 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zbarcam-gtk-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbarcam-gtk",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "zbarcam-gtk 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zbarcam-gtk-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbarcam-qt",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23-1.3ubuntu0.1~esm1",
      "fix": "zbarcam-qt 0.23-1.3ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-zbarcam-qt-0.23-1.3ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "zbarcam-qt",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.23.92-4ubuntu0.1~esm1",
      "fix": "zbarcam-qt 0.23.92-4ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-zbarcam-qt-0.23.92-4ubuntu0.1-esm1",
      "released": "2023-08-29T10:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}