chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x
before 18.104.22.168 and 10.x before 10.0.0-rc1 does not properly initialize
variables during request parsing, which allows remote authenticated
users to cause a denial of service (daemon crash) via a malformed
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20111017 AST-2011-012: Remote crash vulnerability in SIP channel driver
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