CVE-2012-2948 Null dereference in n/a

Medium 4.0 Published Updated

Remote authenticated users can crash the Asterisk PBX daemon by closing a Skinny connection in off-hook mode, causing a denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-2948?

CVE-2012-2948 is a medium-severity vulnerability in n/a, published on 2 Jun 2012. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.

Weakness: CWE-399

Which versions are affected by CVE-2012-2948?

It affects 3 products.

Products include Asterisk Certified Asterisk, Asterisk Open Source, Sangoma Asterisk.

How do I fix CVE-2012-2948?

Upgrade to a fixed version.

Is CVE-2012-2948 being exploited?

There is no known exploitation of CVE-2012-2948 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2012-2948, GHSA-chr5-w9ff-5gcw.

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