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CVSS: 7.1EPSS: 2%CPEs: 290EXPL: 1

chan_sip in Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3, when the timert1 sip.conf configuration is set to a value greater than 1245, allows remote attackers to cause a denial of service (file descriptor consumption) via vectors related to large retransmit timeout values. chan_sip en Asterisk Open Source 1.8.x, 11.x en versiones anteriores a 11.21.1, 12.x y 13.x en versiones anteriores a 13.7.1 y Certified Asterisk 1.8.28, 11.6 en versiones anteriores a 11.6-cert12 y 13.1 en versiones anteriores a 13.1-cert3, cuando la configuración de timert1 en sip.conf se establece en un valor mayor que 1245, permite a atacantes remotos causar una denegación de servicio (consumo de descriptor de archivo) a través de vectores relacionados con valores de caducidad de retransmisión grandes. • http://downloads.asterisk.org/pub/security/AST-2016-002.html http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177409.html http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177422.html http://www.debian.org/security/2016/dsa-3700 http://www.securityfocus.com/bid/82651 http://www.securitytracker.com/id/1034930 • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 4.3EPSS: 50%CPEs: 322EXPL: 0

Asterisk Open Source 1.8 before 1.8.32.3, 11.x before 11.17.1, 12.x before 12.8.2, and 13.x before 13.3.2 and Certified Asterisk 1.8.28 before 1.8.28-cert5, 11.6 before 11.6-cert11, and 13.1 before 13.1-cert2, when registering a SIP TLS device, does not properly handle a null byte in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. Asterisk Open Source 1.8 anterior a 1.8.32.3, 11.x anterior a 11.17.1, 12.x anterior a 12.8.2, y 13.x anterior a 13.3.2 y Certified Asterisk 1.8.28 anterior a 1.8.28-cert5, 11.6 anterior a 11.6-cert11, y 13.1 anterior a 13.1-cert2, cuando registra un dispositivo SIP TLS, no maneja correctamente un byte nulo en un nombre de dominio en el campo Common Name (CN) del sujeto de un certificado X.509, lo que permite a atacantes man-in-the-middle falsificar servidores SSL arbitrarios a través de un certificado manipulado emitido por una autoridad de certificación legítima. • http://advisories.mageia.org/MGASA-2015-0153.html http://downloads.asterisk.org/pub/security/AST-2015-003.html http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162260.html http://packetstormsecurity.com/files/131364/Asterisk-Project-Security-Advisory-AST-2015-003.html http://seclists.org/fulldisclosure/2015/Apr/22 http://www.debian.org/security/2016/dsa-3700 http://www.mandriva.com/security/advisories?name=MDVSA-2015:206 http://www.securityfocus.com/archive/1/535222/100/0 • CWE-310: Cryptographic Issues •

CVSS: 3.5EPSS: 0%CPEs: 34EXPL: 0

Asterisk Open Source 12.x before 12.8.1 and 13.x before 13.1.1, when using the PJSIP channel driver, does not properly reclaim RTP ports, which allows remote authenticated users to cause a denial of service (file descriptor consumption) via an SDP offer containing only incompatible codecs. Asterisk Open Source 12.x anterior a 12.8.1 y 13.x anterior a 13.1.1, cuando utiliza el controlador de canales PJSIP, no recupera correctamente los puertos RTP, lo que permite a usuarios remotos autenticados causar una denegación de servicio (consumo del descriptor de ficheros) a través de una oferta SDP que contiene solamente codecs incompatibles. • http://downloads.asterisk.org/pub/security/AST-2015-001.html http://seclists.org/fulldisclosure/2015/Jan/116 http://www.securityfocus.com/archive/1/534573/100/0/threaded http://www.securitytracker.com/id/1031661 • CWE-399: Resource Management Errors •

CVSS: 5.0EPSS: 3%CPEs: 80EXPL: 0

Double free vulnerability in the WebSocket Server (res_http_websocket module) in Asterisk Open Source 11.x before 11.14.2, 12.x before 12.7.2, and 13.x before 13.0.2 and Certified Asterisk 11.6 before 11.6-cert9 allows remote attackers to cause a denial of service (crash) by sending a zero length frame after a non-zero length frame. Vulnerabilidad de doble liberación en WebSocket Server (el módulo res_http_websocket) en Asterisk Open Source 11.x anterior a 11.14.2, 12.x anterior a 12.7.2, y 13.x anterior a 13.0.2 y Certified Asterisk 11.6 anterior a 11.6-cert9 permite a atacantes remotos causar una denegación de servicio (caída) mediante el envio de un Frame de longitud cero después de un Frame de longitud no cero. • http://advisories.mageia.org/MGASA-2015-0010.html http://downloads.asterisk.org/pub/security/AST-2014-019.html http://packetstormsecurity.com/files/129473/Asterisk-Project-Security-Advisory-AST-2014-019.html http://seclists.org/fulldisclosure/2014/Dec/48 http://secunia.com/advisories/60251 http://www.mandriva.com/security/advisories?name=MDVSA-2015:018 http://www.securityfocus.com/archive/1/534197/100/0/threaded http://www.securityfocus.com/bid/71607 http://www.securitytracker.com/id/ •

CVSS: 4.0EPSS: 1%CPEs: 16EXPL: 0

The res_pjsip_pubsub module in Asterisk Open Source 12.x before 12.5.1 allows remote authenticated users to cause a denial of service (crash) via crafted headers in a SIP SUBSCRIBE request for an event package. El módulo res_pjsip_pubsub en Asterisk Open Source 12.x anterior a 12.5.1 permite a usuarios remotos autenticados causar una denegación de servicio (caída) a través de cabeceras manipuladas en una solicitud SIP SUBSCRIBE para un paquete de eventos. • http://downloads.asterisk.org/pub/security/AST-2014-009.html • CWE-20: Improper Input Validation •