CVE-2008-1923 - CVE House
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Status published High CVE-2008-1923

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

asterisk appliance developer kit, asterisk business edition, asterisknow, open source, s800i
Vulnerable Versions:
0, a, b.1.3.2, b.1.3.3, b.2.2.0, b.2.2.1, b.2.3.1, b.2.3.2, b.2.3.3, b.2.3.4, b.2.5.0, c.1.0-beta7, c.1.0-beta8, c.1.0beta7, c.1.6.1, 1.0, 1.0.1, 1.0.0, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.11, 1.0.11.1, 1.0.12, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.7.1, 1.2.8, 1.2.9, 1.2.9.1, 1.2.10, 1.2.11, 1.2.12, 1.2.12.1, 1.2.13, 1.2.14, 1.2.15, 1.2.16, 1.2.17, 1.2.18, 1.2.19, 1.2.20, 1.2.21, 1.2.21.1, 1.2.22, 1.2.23, 1.2.24, 1.2.25, 1.2.26, 1.2.26.1, 1.2.26.2, 1.2.27, 1.2.28, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.7.1, 1.4.8, 1.4.9, 1.4.10, 1.4.10.1, 1.4.11, 1.4.12, 1.4.12.1, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.16.1, 1.4.16.2, 1.4.17, 1.4.18, 1.4.18.1, 1.4.19, 1.0.3.3, 1.1.0, 1.1.0.1

Timeline

Official Publish: April 23rd, 2008
Last Modified: August 7th, 2024
Added to House: July 18th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.