A vulnerability has been reported in Asterisk, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to the Skinny channel driver (chan_skinny) improperly processing packets. This can be exploited to crash the application by sending a "CAPABILITIES_RES_MESSAGE" packet with the capabilities count greater than the total number of items in the "capabilities_res_message" array.
The vulnerability is reported in the following versions:
Asterisk Open Source 1.4.x, versions prior to 1.4.10
AsteriskNOW pre-release, versions prior to beta7
Asterisk Appliance Developer Kit, versions prior to 0.7.0
s800i versions prior to 1.0.3.
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Subject: Asterisk Skinny Channel Driver Denial of Service
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