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CVSS: 6.8EPSS: 3%CPEs: 1EXPL: 0

Multiple buffer overflows in the voicemail functionality in Asterisk 1.4.x before 1.4.13, when using IMAP storage, might allow (1) remote attackers to execute arbitrary code via a long combination of Content-type and Content-description headers, or (2) local users to execute arbitrary code via a long combination of astspooldir, voicemail context, and voicemail mailbox fields. NOTE: vector 2 requires write access to Asterisk configuration files. Múltiples desbordamientos de búfer en la funcionalidad de voicemail del Asterisk 1.4.x anterior al 1.4.13, cuando se utiliza el almacenamiento IMAP, puede permitir (1) a atacantes ejecutar código de su elección a través de una combinación larga de cabeceras dependientes del tipo (Content-type) y de la descripción (Content-description), o (2) usuarios locales ejecutar código de su elección a través de una combinación larga de los campos astspooldir, voicemail context y voicemail mailbox. NOTA: el vector 2 requiere acceso de escritura en los ficheros de configuración del Asterisk. • http://downloads.digium.com/pub/security/AST-2007-022.html http://osvdb.org/38201 http://osvdb.org/38202 http://secunia.com/advisories/27184 http://www.securityfocus.com/archive/1/481996/100/0/threaded http://www.securityfocus.com/bid/26005 http://www.securitytracker.com/id?1018804 http://www.vupen.com/english/advisories/2007/3454 https://exchange.xforce.ibmcloud.com/vulnerabilities/37051 https://exchange.xforce.ibmcloud.com/vulnerabilities/37052 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.0EPSS: 11%CPEs: 3EXPL: 0

The SIP channel driver (chan_sip) in Asterisk Open Source 1.4.x before 1.4.11, AsteriskNOW before beta7, Asterisk Appliance Developer Kit 0.x before 0.8.0, and s800i (Asterisk Appliance) 1.x before 1.0.3 allows remote attackers to cause a denial of service (memory exhaustion) via a SIP dialog that causes a large number of history entries to be created. El controlador de canal SIP (chan_sip) en Asterisk Open Source 1.4.x anterior a 1.4.11, AsteriskNOW anterior a beta7, Asterisk Appliance Developer Kit 0.x anterior a 0.8.0, y s800i (Asterisk Appliance) 1.x anterior a 1.0.3 permite a atacantes remotos provocar una denegación de servicio (agotamiento de memoria) mediante un diálogo SIP que provoca que se cree un gran número de entradas de histórico. • http://downloads.digium.com/pub/asa/AST-2007-020.html http://seclists.org/fulldisclosure/2007/Aug/0393.html http://secunia.com/advisories/26553 http://securityreason.com/securityalert/3047 http://www.securityfocus.com/bid/25392 http://www.securitytracker.com/id?1018595 http://www.vupen.com/english/advisories/2007/2953 https://exchange.xforce.ibmcloud.com/vulnerabilities/36145 •

CVSS: 3.5EPSS: 93%CPEs: 4EXPL: 0

The Skinny channel driver (chan_skinny) in Asterisk Open Source before 1.4.10, AsteriskNOW before beta7, Appliance Developer Kit before 0.7.0, and Appliance s800i before 1.0.3 allows remote authenticated users to cause a denial of service (application crash) via a CAPABILITIES_RES_MESSAGE packet with a capabilities count larger than the capabilities_res_message array population. El dispositivo de canal Skinny (chan_skinny) en el Asterisk Open Source anterior al 1.4.10, el AsteriskNOW anterior al beta7, el Appliance Developer Kit anterior al 0.7.0 y el Appliance s800i before 1.0.3 permite a atacantes remotos provocar una denegación de servicio (caída de la aplicación) a través del paquete CAPABILITIES_RES_MESSAGE con una capacidad de escrutinio mayor que el array capabilities_res_message de población. • http://downloads.digium.com/pub/asa/ASA-2007-019.pdf http://secunia.com/advisories/26340 http://www.securityfocus.com/bid/25228 http://www.securitytracker.com/id?1018536 http://www.vupen.com/english/advisories/2007/2808 https://exchange.xforce.ibmcloud.com/vulnerabilities/35870 •

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

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 transmitidos, y posiblemente obtener información sensible (contenido de memoria) o provocar denegación de servicio (caida de aplicación), enviando un marco que carece 0 bytes. • http://ftp.digium.com/pub/asa/ASA-2007-013.pdf http://osvdb.org/35769 http://secunia.com/advisories/25134 http://secunia.com/advisories/25582 http://www.debian.org/security/2007/dsa-1358 http://www.novell.com/linux/security/advisories/2007_34_asterisk.html http://www.securityfocus.com/bid/23824 http://www.vupen.com/english/advisories/2007/1661 https://exchange.xforce.ibmcloud.com/vulnerabilities/34085 •

CVSS: 7.8EPSS: 93%CPEs: 37EXPL: 0

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 http://secunia.com/advisories/24579 http://secunia.com/advisories/24719 http://secunia.com/advisories/25582 http://security.gentoo.org/glsa/glsa-200704-01.xml http://svn.digium.com/view/asterisk/trunk/channels/chan_sip.c?r1=58907&r2=59038 http://voipsa.org/pipermail/voipsec_voipsa.org/2007-March/002275.html http://www.asterisk.org/node/48338 http://www.novell.com/linux/security/advisories/2007_34_asterisk.html http://www.sec •