CVE-2008-1923
EPSS 1.5%
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.
How to fix CVE-2008-1923
To remediate CVE-2008-1923, upgrade the affected package to a fixed version below.
- Debian/asterisk—upgrade to 1:1.4.19.1~dfsg-1 or later
Is CVE-2008-1923 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:1.4.19.1~dfsg-1