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CVSS: 7.8EPSS: 18%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: 9.8EPSS: 88%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 •

CVSS: 7.8EPSS: 11%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: 5%CPEs: 20EXPL: 0

24 Aug 2006 — Stack-based buffer overflow in channels/chan_mgcp.c in MGCP in Asterisk 1.0 through 1.2.10 allows remote attackers to execute arbitrary code via a crafted audit endpoint (AUEP) response. Desbordamiento de búfer basado en pila en channels/chan_mgcp.c de MGCP en Asterisk 1.0 hasta 1.2.10 permite a atacantes remotos ejecutar código de su elección mediante una respuesta de fin de auditoría (audit endpoint) (AUEP) manipulada. • http://ftp.digium.com/pub/asterisk/ChangeLog-1.2.11 •

CVSS: 9.8EPSS: 0%CPEs: 9EXPL: 0

07 Jun 2006 — The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check. NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable. • http://secunia.com/advisories/20497 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •