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...

CVE-2011-2665

reqrespparser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a SIP packet with a Contact header that lacks a less than character...

CVE-2011-2666

The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the...

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...

CVE-2011-2666

The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the...

CVE-2011-2529

chansip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service memory corruption or possibly have unspecified other impact via a crafte...

DEBIAN-CVE-2011-2529

chansip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service memory corruption or possibly have unspecified other impact via a crafte...

Null pointer dereference

reqrespparser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a SIP packet with a Contact header that lacks a less than character...

CVE-2011-2665

reqrespparser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a SIP packet with a Contact header that lacks a less than character...

CVE-2011-2666

The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the...

Code injection

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...

CVE-2011-2529

chansip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service memory corruption or possibly have unspecified other impact via a crafte...

Default configuration

The default configuration of the SIP channel driver in Asterisk Open Source 1.4.x through 1.4.41.2 and 1.6.2.x through 1.6.2.18.2 does not enable the alwaysauthreject option, which allows remote attackers to enumerate account names by making a series of invalid SIP requests and observing the...

Memory corruption

chansip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service memory corruption or possibly have unspecified other impact via a crafte...

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...

CVE-2011-2665

Summary: CVE-2011-2665 affects Asterisk Open Source 1.8.x prior to 1.8.4.3. The SIP channel driver’s reqresp_parser.c contains a flaw where a SIP packet with a Contact header lacking a left angle bracket (

CVE-2011-2529

CVE-2011-2529 affects Asterisk Open Source: chan_sip.c in the SIP channel driver fails to properly handle '\0' characters in SIP packets, allowing remote attackers to trigger memory corruption and possibly cause a denial of service (and other impact). Affected are Asterisk 1.6.x before 1.6.2.18.1...

CVE-2011-2665

reqrespparser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a SIP packet with a Contact header that lacks a less than character...

CVE-2011-2529

chansip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service memory corruption or possibly have unspecified other impact via a crafte...

CVE-2011-2666

CVE-2011-2666 affects Asterisk Open Source SIP channel, where the default configuration does not enable the alwaysauthreject option in the SIP channel driver. This allows remote attackers to enumerate account names by sending a series of invalid SIP requests and observing differences in responses...