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CVSS: 7.5EPSS: 95%CPEs: 36EXPL: 1

18 Jul 2007 — The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable. El gestor de dispositivo de canal IAX2 (chan_iax... • https://www.exploit-db.com/exploits/4249 •

CVSS: 9.8EPSS: 19%CPEs: 36EXPL: 0

18 Jul 2007 — Stack-based buffer overflow in the IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to execute arbitrary code by sending a long (1) voice or (2) video RTP frame. Desbordamiento de búfer basado en pila en el controlador de canal IAX2 (chan_iax2) de Asterisk anterior a 1.2.22 y 1.4.x anterior a 1.4.8, Business Edition anterior a B.2.2.... • http://bugs.gentoo.org/show_bug.cgi?id=185713 •

CVSS: 10.0EPSS: 7%CPEs: 1EXPL: 0

07 May 2007 — The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte. El controlador del canal IAX2 (chan_iax2) en Asterisk anterior a 20070504 no anula correctamente los datos terminales, lo cual permite a atacantes remotos disparar la pérdida de datos transmit... • http://ftp.digium.com/pub/asa/ASA-2007-013.pdf •

CVSS: 7.8EPSS: 9%CPEs: 13EXPL: 0

26 Apr 2007 — The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash). El SIP channel driver (chan_sip) del Asterisk anterior al 1.2.18 y el 1.4.x anterior al 1.4.3 no analiza sintácticamente de forma correcta los paquetes SIP UDP que no contienen un código de respuesta válido, lo que permite a atacantes remotos provocar una denegación de servicio... • http://bugs.digium.com/view.php?id=9313 •

CVSS: 7.8EPSS: 8%CPEs: 18EXPL: 0

26 Apr 2007 — The Manager Interface in Asterisk before 1.2.18 and 1.4.x before 1.4.3 allows remote attackers to cause a denial of service (crash) by using MD5 authentication to authenticate a user that does not have a password defined in manager.conf, resulting in a NULL pointer dereference. El Manager Interface en Asterisk anterior a 1.2.18 y 1.4.x anterior a 1.4.3 permite a atacantes remotos provocar denegación de servicio (caida) utilizando validación MD5 para validar a un usuario que no tiene definida una contraseña ... • http://secunia.com/advisories/24977 •

CVSS: 7.8EPSS: 95%CPEs: 37EXPL: 0

22 Mar 2007 — The handle_response function in chan_sip.c in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP Response code 0 in a SIP packet. La función handle_response en chan_sip.c de Asterisk before 1.2.17 y 1.4.x versiones anteriores a 1.4.2 permite a atacantes remotos provocar una denegación de servicio (caída) mediante una respuesta SIP código 0 en un paquete SIP. • http://bugs.digium.com/view.php?id=9313 •

CVSS: 7.8EPSS: 31%CPEs: 4EXPL: 1

21 Mar 2007 — The channel driver in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP INVITE message with an SDP containing one valid and one invalid IP address. El controlador del canal en Asterisk en versiones anteriores a 1.2.17 y 1.4.x en versiones anteriores a 1.4.2 permite a atacantes remotos provocar una denegación de servicio (caída) a través de un mensaje SIP INVITE con un SDP que contiene una dirección IP válida y otra no válida. • https://www.exploit-db.com/exploits/3566 •

CVSS: 7.8EPSS: 95%CPEs: 18EXPL: 1

07 Mar 2007 — Asterisk 1.4 before 1.4.1 and 1.2 before 1.2.16 allows remote attackers to cause a denial of service (crash) by sending a Session Initiation Protocol (SIP) packet without a URI and SIP-version header, which results in a NULL pointer dereference. Asterisk versiones 1.4 anteriores a 1.4.1 y versiones 1.2 anteriores a 1.2.16, permite a atacantes remotos causar una denegación de servicio (bloqueo) enviando un paquete de Session Initiation Protocol (SIP) sin una URI y Encabezado SIP-version, lo que resulta en un... • https://www.exploit-db.com/exploits/3407 •

CVSS: 7.8EPSS: 83%CPEs: 13EXPL: 0

23 Oct 2006 — Unspecified vulnerability in the SIP channel driver (channels/chan_sip.c) in Asterisk 1.2.x before 1.2.13 and 1.4.x before 1.4.0-beta3 allows remote attackers to cause a denial of service (resource consumption) via unspecified vectors that result in the creation of "a real pvt structure" that uses more resources than necessary. Vulnerabilidad no especificada en el controlador de canal SIP (channels/chan_sip.c) en ASterisk 1.2.x anteriores a 1.2.13 y 1.4.x aneriores a 1.4.0-beta3 permite a atacantes remotos ... • http://ftp.digium.com/pub/asterisk/releases/ChangeLog-1.2.13 •

CVSS: 9.8EPSS: 96%CPEs: 26EXPL: 2

23 Oct 2006 — Integer overflow in the get_input function in the Skinny channel driver (chan_skinny.c) in Asterisk 1.0.x before 1.0.12 and 1.2.x before 1.2.13, as used by Cisco SCCP phones, allows remote attackers to execute arbitrary code via a certain dlen value that passes a signed integer comparison and leads to a heap-based buffer overflow. Desbordamiento de entero en la función get_input en el controlador de canal Skinny (chan_skinny.c) en Asterisk 1.0.x anteriores a 1.0.12 y 1.2.x anteriores a 1.2.13, utilizados en... • https://www.exploit-db.com/exploits/2597 •