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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: 5.3EPSS: 1%CPEs: 146EXPL: 0

12 Dec 2016 — An issue was discovered in Asterisk Open Source 11.x before 11.25.1, 13.x before 13.13.1, and 14.x before 14.2.1 and Certified Asterisk 11.x before 11.6-cert16 and 13.x before 13.8-cert4. The chan_sip channel driver has a liberal definition for whitespace when attempting to strip the content between a SIP header name and a colon character. Rather than following RFC 3261 and stripping only spaces and horizontal tabs, Asterisk treats any non-printable ASCII character as if it were whitespace. This means that ... • http://downloads.asterisk.org/pub/security/AST-2016-009.html • CWE-285: Improper Authorization •

CVSS: 7.5EPSS: 6%CPEs: 113EXPL: 0

26 Oct 2016 — chain_sip in Asterisk Open Source 11.x before 11.23.1 and 13.x 13.11.1 and Certified Asterisk 11.6 before 11.6-cert15 and 13.8 before 13.8-cert3 allows remote attackers to cause a denial of service (port exhaustion). chain_sip en Asterisk Open Source 11.x en versiones anteriores a 11.23.1 y 13.x 13.11.1 y Certified Asterisk 11.6 en versiones anteriores a 11.6-cert15 y 13.8 en versiones anteriores a 13.8-cert3 permite a atacantes remotos provocar una denegación de servicio (agotamiento portuario) Multiple vu... • http://downloads.asterisk.org/pub/security/AST-2016-007.html • CWE-399: Resource Management Errors •

CVSS: 6.5EPSS: 8%CPEs: 288EXPL: 0

22 Feb 2016 — 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 allow remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a zero length error correcting redundancy packet for a UDPTL FAX packet that is lost. 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 ver... • http://downloads.asterisk.org/pub/security/AST-2016-003.html •

CVSS: 7.1EPSS: 0%CPEs: 290EXPL: 1

22 Feb 2016 — 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... • http://downloads.asterisk.org/pub/security/AST-2016-002.html • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 7.5EPSS: 45%CPEs: 322EXPL: 0

09 Apr 2015 — 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. As... • http://advisories.mageia.org/MGASA-2015-0153.html • CWE-310: Cryptographic Issues •

CVSS: 7.5EPSS: 49%CPEs: 80EXPL: 0

12 Dec 2014 — 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 ... • http://advisories.mageia.org/MGASA-2015-0010.html •

CVSS: 5.0EPSS: 0%CPEs: 15EXPL: 0

24 Nov 2014 — The (1) VoIP channel drivers, (2) DUNDi, and (3) Asterisk Manager Interface (AMI) in Asterisk Open Source 1.8.x before 1.8.32.1, 11.x before 11.14.1, 12.x before 12.7.1, and 13.x before 13.0.1 and Certified Asterisk 1.8.28 before 1.8.28-cert3 and 11.6 before 11.6-cert8 allows remote attackers to bypass the ACL restrictions via a packet with a source IP that does not share the address family as the first ACL entry. (1) Los controladores de canales VoIP, (2) DUNDi, y (3) Asterisk Manager Interface (AMI) en As... • http://downloads.asterisk.org/pub/security/AST-2014-012.html • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 0

24 Nov 2014 — ConfBridge in Asterisk 11.x before 11.14.1 and Certified Asterisk 11.6 before 11.6-cert8 does not properly handle state changes, which allows remote attackers to cause a denial of service (channel hang and memory consumption) by causing transitions to be delayed, which triggers a state change from hung up to waiting for media. ConfBridge en Asterisk 11.x anterior a 11.14.1 y Certified Asterisk 11.6 anterior a 11.6-cert8 no maneja debida mente los cambios de estado, lo que permite a atacantes remotos causar ... • http://downloads.asterisk.org/pub/security/AST-2014-014.html • CWE-399: Resource Management Errors •

CVSS: 8.8EPSS: 0%CPEs: 11EXPL: 0

24 Nov 2014 — ConfBridge in Asterisk 11.x before 11.14.1, 12.x before 12.7.1, and 13.x before 13.0.1 and Certified Asterisk 11.6 before 11.6-cert8 allows remote authenticated users to (1) gain privileges via vectors related to an external protocol to the CONFBRIDGE dialplan function or (2) execute arbitrary system commands via a crafted ConfbridgeStartRecord AMI action. ConfBridge en Asterisk 11.x anterior a 11.14.1, 12.x anterior a 12.7.1, y 13.x anterior a 13.0.1 y Certified Asterisk 11.6 anterior a 11.6-cert8 permite ... • http://downloads.asterisk.org/pub/security/AST-2014-017.html • CWE-264: Permissions, Privileges, and Access Controls •