CVSS: 5.3EPSS: 0%CPEs: 16EXPL: 1CVE-2020-28327
https://notcve.org/view.php?id=CVE-2020-28327
A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This caused a gap between the creation of the dialog object, and its next use by the thread that created it. Depending on some off-nominal circumstances and timing, it was possible for another thread to free said dialog in this gap. Asterisk could then crash when the dialog object, or any of its dependent objects, were dereferenced or accessed next by the initial-creation thread. • http://downloads.asterisk.org/pub/security/AST-2020-001.html https://issues.asterisk.org/jira/browse/ASTERISK-29057 • CWE-404: Improper Resource Shutdown or Release •
CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 0CVE-2020-28242
https://notcve.org/view.php?id=CVE-2020-28242
An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur. Se detectó un problema en Asterisk Open Source versiones 13.x anteriores a 13.37.1, versiones 16.x anteriores a 16.14.1, versiones 17.x anteriores a 17.8.1 y versiones 18.x anteriores a 18.0.1 y Certified Asterisk versiones anteriores a 16.8-cert5. • http://downloads.asterisk.org/pub/security/AST-2020-002.html https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB • CWE-674: Uncontrolled Recursion •
CVSS: 6.8EPSS: 0%CPEs: 1EXPL: 1CVE-2018-12228
https://notcve.org/view.php?id=CVE-2018-12228
An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable. Se ha descubierto un problema en Asterisk Open Source en versiones 15.x anteriores a la 15.4.1. Cuando se conecta a Asterisk vía TCP/TLS, si el cliente se desconecta abruptamente o envía un mensaje especialmente diseñado, entonces Asterisk queda atrapado en un bucle infinito mientras intenta leer el flujo de datos. • http://downloads.asterisk.org/pub/security/AST-2018-007.html http://www.securityfocus.com/bid/104457 https://issues.asterisk.org/jira/browse/ASTERISK-27807 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •