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CVSS: 6.5EPSS: 63%CPEs: 5EXPL: 2

22 Feb 2018 — An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection. Se ha descubierto un problema en Asterisk hasta la versión 13.19.1, versiones 14.x hasta la 14.7.5 y versiones 15.x hasta la 15.2.1; así como Certified Asterisk hasta la vers... • https://packetstorm.news/files/id/146580 •

CVSS: 8.8EPSS: 3%CPEs: 14EXPL: 0

09 Nov 2017 — A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer. Una vulnerabilidad de desbordamiento de búfer se descubri... • http://downloads.digium.com/pub/security/AST-2017-010.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.9EPSS: 5%CPEs: 14EXPL: 0

09 Nov 2017 — An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. A memory leak occurs when an Asterisk pjsip session object is created and that call gets rejected before the session itself is fully established. When this happens the session object never gets destroyed. Eventually Asterisk can run out of memory and crash. Se descubrió un problema en Asterisk Open Source en versiones 13 anteriores a la 13.18.1, versiones... • http://downloads.digium.com/pub/security/AST-2017-011.html • CWE-772: Missing Release of Resource after Effective Lifetime •

CVSS: 7.5EPSS: 0%CPEs: 189EXPL: 0

09 Oct 2017 — In Asterisk 11.x before 11.25.3, 13.x before 13.17.2, and 14.x before 14.6.2 and Certified Asterisk 11.x before 11.6-cert18 and 13.x before 13.13-cert6, insufficient RTCP packet validation could allow reading stale buffer contents and when combined with the "nat" and "symmetric_rtp" options allow redirecting where Asterisk sends the next RTCP report. En Asterisk enversiones 11.x anteriores a la 11.25.3, versiones 13.x anteriores a la 13.17.2 y versiones 14.x anteriores a la 14.6.2; y en Certified Asterisk e... • http://downloads.asterisk.org/pub/security/AST-2017-008.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 9.8EPSS: 35%CPEs: 189EXPL: 0

02 Sep 2017 — In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized command execution is possible. The app_minivm module has an "externnotify" program configuration option that is executed by the MinivmNotify dialplan application. The application uses the caller-id name and number as part of a built string passed to the OS shell for interpretation and execution. Since the caller-id name and number can come from... • http://downloads.asterisk.org/pub/security/AST-2017-006.html • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVSS: 7.5EPSS: 0%CPEs: 189EXPL: 0

02 Sep 2017 — In res/res_rtp_asterisk.c in Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized data disclosure (media takeover in the RTP stack) is possible with careful timing by an attacker. The "strictrtp" option in rtp.conf enables a feature of the RTP stack that learns the source address of media for a session and drops any packets that do not originate from the expected address. This option is enabled by d... • http://downloads.asterisk.org/pub/security/AST-2017-005.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.5EPSS: 3%CPEs: 50EXPL: 0

02 Jun 2017 — PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter. PJSIP, tal como es usado en Asterisk Open Source versiones 13.x y anteriores a 13.15.1 y versiones 14.x y anteriores a 14.4.1, Certified Asterisk versión 13.13 y a... • http://downloads.asterisk.org/pub/security/AST-2017-002.txt • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 1%CPEs: 50EXPL: 0

02 Jun 2017 — A memory exhaustion vulnerability exists in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1 and Certified Asterisk 13.13 before 13.13-cert4, which can be triggered by sending specially crafted SCCP packets causing an infinite loop and leading to memory exhaustion (by message logging in that loop). Existe una vulnerabilidad de agotamiento de memoria en Asterisk Open Source, en versiones 13.x anteriores a la 13.15.1 y versiones 14.x anteriores a la 14.4.1, y en Certified Asterisk, en versiones... • http://downloads.asterisk.org/pub/security/AST-2017-004.txt • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 7.5EPSS: 0%CPEs: 42EXPL: 0

02 Jun 2017 — The multi-part body parser in PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted packet. El analizador multi-part body en PJSIP, tal como es usado en Asterisk Open Source versiones 13.x y anteriores a 13.15.1 y versiones 14.x y anteriores a 14.4.1, Certified Asterisk versión 13.13 y anteriores a 13.13-ce... • http://downloads.asterisk.org/pub/security/AST-2017-003.txt • CWE-125: Out-of-bounds Read •

CVSS: 8.8EPSS: 18%CPEs: 61EXPL: 0

10 Apr 2017 — Remote code execution can occur in Asterisk Open Source 13.x before 13.14.1 and 14.x before 14.3.1 and Certified Asterisk 13.13 before 13.13-cert3 because of a buffer overflow in a CDR user field, related to X-ClientCode in chan_sip, the CDR dialplan function, and the AMI Monitor action. La ejecución remota de código puede ocurrir en Asterisk Open Source 13.x en versiones anteriores a 13.14.1 y 14.x en versiones anteriores a 14.3.1 y Asterisk certificado 13.13 en versiones anteriores a 13.13-cert3 debido a ... • http://downloads.asterisk.org/pub/security/AST-2017-001.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •