{
  "cveId": "CVE-2023-53159",
  "url": "https://patchblox.com/security/cve/CVE-2023-53159",
  "summary": "CVE-2023-53159 is fixed in 2 products on 1 platform, first by librust-openssl-dev 0.10.23-1ubuntu0.1~esm1, released July 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.",
  "description": "The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.",
  "published": "2025-07-27T20:15:00Z",
  "severity": "Medium",
  "cvss": 4.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
  "cwe": "Buffer Over-read",
  "epss": 0.00226,
  "epssPercentile": 0.13338,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-53159",
  "fixes": [
    {
      "platform": "linux",
      "product": "librust-openssl-dev",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.10.23-1ubuntu0.1~esm1",
      "fix": "librust-openssl-dev 0.10.23-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-librust-openssl-dev-0.10.23-1ubuntu0.1-esm1",
      "released": "2025-07-27T20:15:00Z"
    },
    {
      "platform": "linux",
      "product": "librust-openssl-dev",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.10.36-1ubuntu0.1~esm1",
      "fix": "librust-openssl-dev 0.10.36-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-librust-openssl-dev-0.10.36-1ubuntu0.1-esm1",
      "released": "2025-07-27T20:15:00Z"
    },
    {
      "platform": "linux",
      "product": "rust-openssl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.10.57-1",
      "fix": "DEBIAN-CVE-2023-53159",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53159",
      "released": "2025-07-28T03:15:23Z"
    },
    {
      "platform": "linux",
      "product": "rust-openssl",
      "release": "Debian 14",
      "fixedVersion": "0.10.57-1",
      "fix": "DEBIAN-CVE-2023-53159",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53159",
      "released": "2025-07-28T03:15:23Z"
    }
  ],
  "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"
  }
}