{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "inn2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "inn2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "inn2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "low"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "inn2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.3-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack, a similar issue to CVE-2011-0411.",
  "id": "DEBIAN-CVE-2012-3523",
  "modified": "2026-04-28T19:51:18.697942585Z",
  "published": "2012-11-11T13:00:46.727Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2012-3523"
    }
  ],
  "upstream": [
    "CVE-2012-3523"
  ]
}