{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "unbound"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "unbound"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "unbound"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "unbound"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.14-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.",
  "id": "DEBIAN-CVE-2011-4528",
  "modified": "2025-11-19T01:03:14.872714615Z",
  "published": "2011-12-20T11:55:05.757Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-4528"
    }
  ],
  "upstream": [
    "CVE-2011-4528"
  ]
}