{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "ejabberd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.6-2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "ejabberd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.6-2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "ejabberd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.6-2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "ejabberd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.6-2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.",
  "id": "DEBIAN-CVE-2011-1753",
  "modified": "2026-04-28T19:53:43.888743031Z",
  "published": "2011-06-21T02:52:42.763Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-1753"
    }
  ],
  "upstream": [
    "CVE-2011-1753"
  ]
}