CVE-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.
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-16
- Published
- Modified
- Record from
- the NVD, synced
Affected
- asterisk:asterisk_appliance_developer_kit
- asterisk:asterisk_business_edition
- asterisk:asterisknow
- asterisk:open_source
- asterisk:s800i