7.1high

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 unauthent…

Published 18 y ago · modified 4 mo ago · JSON

CVSS
7.1
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 73%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

1.40% probability of exploitation in the next 30 days, higher than 73% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.1AV:N/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.