CVE-2008-1923 Denial of service in n/a
Remote attackers can cause denial of service via traffic amplification in Asterisk when unauthenticated calls are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-1923?
CVE-2008-1923 is a high-severity denial of service vulnerability in n/a, published on 23 Apr 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-16
Which versions are affected by CVE-2008-1923?
It affects 5 products.
Products include Asterisk Asterisk Appliance Developer Kit, Asterisk Asterisk Business Edition, Asterisk Asterisknow, Asterisk Open Source, Asterisk S800i.
How do I fix CVE-2008-1923?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2008-1923 being exploited?
There is no known exploitation of CVE-2008-1923 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2008-1923, GHSA-3p74-pwfx-pcgr.