CVE-2007-3765 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can crash Asterisk PBX systems by sending crafted STUN packets, requiring an upgrade to patched versions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2007-3765?

CVE-2007-3765 is a medium-severity denial of service vulnerability in n/a, published on 18 Jul 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The STUN implementation in Asterisk 1.4.x before 1.4.8, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted STUN length attribute in a STUN packet sent on an RTP port.

Which versions are affected by CVE-2007-3765?

It affects 4 products.

Products include Asterisk Asterisk, Asterisk Asterisk Appliance Developer Kit, Asterisk Asterisknow, Asterisk S800i Appliance.

How do I fix CVE-2007-3765?

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-2007-3765 being exploited?

There is no known exploitation of CVE-2007-3765 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2007-3765, GHSA-f9w4-q8jc-qc4v.

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