CVE-2007-4455 Denial of service in n/a
Remote attackers can cause denial of service via memory exhaustion in the Asterisk SIP channel driver by creating excessive history entries.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-4455?
CVE-2007-4455 is a medium-severity denial of service vulnerability in n/a, published on 22 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created.
Which versions are affected by CVE-2007-4455?
It affects 3 products.
Products include Asterisk Asterisk, Asterisk Asterisk Appliance Developer Kit, Asterisk Asterisknow.
How do I fix CVE-2007-4455?
Upgrade to a fixed version.
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-2007-4455 being exploited?
There is no known exploitation of CVE-2007-4455 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2007-4455, GHSA-c3jc-cr5w-8999.