Description
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.
References
- 52568 vdb-entry
- 34070 vdb-entry
- 1021834 vdb-entry
- 20090310 AST-2009-002: Remote Crash Vulnerability in SIP channel driver mailing-list
- http://bugs.digium.com/view.php?id=14417
- http://bugs.digium.com/view.php?id=13547
- http://downloads.digium.com/pub/security/AST-2009-002.html
- ADV-2009-0667 vdb-entry
- 34229 third-party-advisory