29 matches found
CVE-2011-4598
The handlerequestinfo function in channels/chansip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted sequence of SIP requests...
CVE-2011-4598
The handlerequestinfo function in channels/chansip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted sequence of SIP requests...
Null pointer dereference
The handlerequestinfo function in channels/chansip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted sequence of SIP requests...
CVE-2011-4598
The handlerequestinfo function in channels/chansip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted sequence of SIP requests...
CVE-2011-4598
The handlerequestinfo function in channels/chansip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a crafted sequence of SIP requests...
Asterisk Invalid INVITE / REGISTER SIP Request Username Enumeration (AST-2011-011)
According to the version in its SIP banner, the version of Asterisk running on the remote host allows a remote attacker to enumerate valid users by sending malformed SIP INVITE and REGISTER requests. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. include'deprecatednasllevel.inc';...
CVE-2011-2536
chansip.c in the SIP channel driver in Asterisk Open Source 1.4.x before 1.4.41.2, 1.6.2.x before 1.6.2.18.2, and 1.8.x before 1.8.4.4, and Asterisk Business Edition C.3.x before C.3.7.3, disregards the alwaysauthreject option and generates different responses for invalid SIP requests depending o...
AST-2011-011: Possible enumeration of SIP users due to differing authentication responses
Asterisk Project Security Advisory - AST-2011-011 +------------------------------------------------------------------------+ | Product | Asterisk | |--------------------+---------------------------------------------------| | Summary | Possible enumeration of SIP users due to | | | differing...