{
  "modified": "2025-08-09T19:01:27Z",
  "published": "2009-12-31T18:30:01Z",
  "id": "CVE-2009-4501",
  "details": "The zbx_get_next_field function in libs/zbxcommon/str.c in Zabbix Server before 1.6.8 allows remote attackers to cause a denial of service (crash) via a request that lacks expected separators, which triggers a NULL pointer dereference, as demonstrated using the Command keyword.",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://secunia.com/advisories/37740"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.vupen.com/english/advisories/2009/3514"
    },
    {
      "type": "FIX",
      "url": "http://www.securityfocus.com/archive/1/508436/30/60/threaded"
    },
    {
      "type": "WEB",
      "url": "https://support.zabbix.com/browse/ZBX-1355"
    }
  ]
}