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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2008-1923 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T08:41:00.169Z

Reserved: 2008-04-23T00:00:00.000Z

Link: CVE-2008-1923

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2008-04-23T16:05:00.000

Modified: 2025-04-09T00:30:58.490

Link: CVE-2008-1923

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses