{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "pidgin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "pidgin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "pidgin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "pidgin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.1-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "libpurple in Pidgin before 2.2.1 does not properly handle MSN nudge messages from users who are not on the receiver's buddy list, which allows remote attackers to cause a denial of service (crash) via a nudge message that triggers an access of \"an invalid memory location.\"",
  "id": "DEBIAN-CVE-2007-4996",
  "modified": "2026-04-28T19:53:30.256738480Z",
  "published": "2007-10-01T20:17:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2007-4996"
    }
  ],
  "upstream": [
    "CVE-2007-4996"
  ]
}