NULL pointer dereference vulnerability in reqresp_parser.c in Asterisk Open Source 1.8.x before 1.8.4.2

CVE-2011-2216 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact header.

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