Description

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 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 request.

Weaknesses 1

Affected Products 2

References 7

• downloads.digium.com http://downloads.digium.com/pub/security/AST-2011-012.html
  Vendor Advisory
• secunia.com http://secunia.com/advisories/46420
• securityreason.com http://securityreason.com/securityalert/8478
• securityfocus.com http://www.securityfocus.com/archive/1/520141/100/0/threaded
• securityfocus.com http://www.securityfocus.com/bid/50177
• securitytracker.com http://www.securitytracker.com/id?1026191
• exchange.xforce.ibmcloud.com https://exchange.xforce.ibmcloud.com/vulnerabilities/70706

Remediation