| Package | Affected versions | Patched versions |
|---|---|---|
| asterisk | = 1.4.22= 1.4.23= 1.4.23.1= 1.6.0= 1.6.0.1= 1.6.0.2= 1.6.0.3= 1.6.0.4= 1.6.0.5= 1.6.1= c.2.3 |
The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.
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