CVE-2007-1561 Denial of service in n/a

High 7.8 Published 21 Mar 2007 Updated 7 Aug 2024

Remote attackers can crash Asterisk by sending a SIP INVITE with malformed SDP IP addresses, requiring an upgrade to mitigate.

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

What is CVE-2007-1561?

CVE-2007-1561 is a high-severity denial of service vulnerability in n/a, published on 21 Mar 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The channel driver in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP INVITE message with an SDP containing one valid and one invalid IP address.

Which versions are affected by CVE-2007-1561?

It affects 1 product.

Products include Asterisk Asterisk.

How do I fix CVE-2007-1561?

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-2007-1561 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-1561 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2007-1561, GHSA-jwxq-x6h2-p3qv.