Asterisk SCCP (Skinny) channel driver denial of service
|asterisk-scd-dos (75937)||Medium Risk|
Asterisk is vulnerable to a denial of service, caused by a Null-pointer dereference in the SCCP (Skinny) channel driver. By closing a connection to the Asterisk server in certain call states, a remote attacker with a valid SCCP ID could exploit this vulnerability to cause the application to crash.
Denial of Service
Refer to AST-2012-008 for patch, upgrade or suggested workaround information. See References.
- AST-2012-008: Skinny Channel Driver Remote Crash Vulnerability.
- BID-53723: Asterisk SCCP Skinny Channel Driver Denial Of Service Vulnerability
- CVE-2012-2948: 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 18.104.22.168 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.
- DSA-2493: asterisk -- denial of service
- OSVDB ID: 82451: Asterisk channels/chan_skinny.c SCCP (Skinny) Channel Driver Client Connection Termination Handling Remote DoS
- SA49303: Asterisk Two Denial of Service Vulnerabilities
- Digium Asterisk 1.8
- Digium Asterisk 10
May 29, 2012
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.