{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "fail2ban"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.3-2sid1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "fail2ban"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.3-2sid1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "fail2ban"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.3-2sid1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "fail2ban"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.8.3-2sid1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DNS name (rhost) entry that contains a substring that is interpreted as an IP address, a different vulnerability than CVE-2007-4321.",
  "id": "DEBIAN-CVE-2009-0362",
  "modified": "2026-04-28T19:48:13.302570476Z",
  "published": "2009-02-13T01:30:00.360Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2009-0362"
    }
  ],
  "upstream": [
    "CVE-2009-0362"
  ]
}