{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "medium"
      },
      "package": {
        "ecosystem": "Debian:11",
        "name": "asterisk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.4.19.1~dfsg-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends \"early audio\" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.",
  "id": "DEBIAN-CVE-2008-1923",
  "modified": "2026-04-28T19:53:20.940900577Z",
  "published": "2008-04-23T16:05:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2008-1923"
    }
  ],
  "upstream": [
    "CVE-2008-1923"
  ]
}