{
  "cveId": "CVE-2022-37452",
  "url": "https://patchblox.com/security/cve/CVE-2022-37452",
  "summary": "CVE-2022-37452 is fixed in 6 products on 1 platform, first by exim4 4.90.1-1ubuntu1.9, released August 7, 2022. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "exim4: Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_n...",
  "description": "Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set.",
  "published": "2022-08-07T11:15:00Z",
  "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": 0.03768,
  "epssPercentile": 0.89984,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.94.2-5",
      "fix": "DEBIAN-CVE-2022-37452",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-37452",
      "released": "2022-08-07T18:15:08Z"
    },
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.94.2-5",
      "fix": "DEBIAN-CVE-2022-37452",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-37452",
      "released": "2022-08-07T18:15:08Z"
    },
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Debian 14",
      "fixedVersion": "4.94.2-5",
      "fix": "DEBIAN-CVE-2022-37452",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-37452",
      "released": "2022-08-07T18:15:08Z"
    },
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "exim4 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-exim4-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "exim4 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-exim4-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-base",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "exim4-base 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-exim4-base-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-base",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "exim4-base 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-exim4-base-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-config",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "exim4-config 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-exim4-config-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-config",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "exim4-config 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-exim4-config-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-daemon-heavy",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "exim4-daemon-heavy 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-exim4-daemon-heavy-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-daemon-heavy",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "exim4-daemon-heavy 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-exim4-daemon-heavy-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-daemon-light",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "exim4-daemon-light 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-exim4-daemon-light-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "exim4-daemon-light",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "exim4-daemon-light 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-exim4-daemon-light-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "eximon4",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.90.1-1ubuntu1.9",
      "fix": "eximon4 4.90.1-1ubuntu1.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-eximon4-4.90.1-1ubuntu1.9",
      "released": "2022-08-07T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "eximon4",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.93-13ubuntu1.6",
      "fix": "eximon4 4.93-13ubuntu1.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-eximon4-4.93-13ubuntu1.6",
      "released": "2022-08-07T11:15:00Z"
    }
  ],
  "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"
  }
}