CVSS: 5.7EPSS: 0%CPEs: 5EXPL: 0CVE-2024-42491 – A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
https://notcve.org/view.php?id=CVE-2024-42491
05 Sep 2024 — Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.24.3, 20.9.3, and 21.4.3 of Asterisk and versions 18.9-cert12 and 20.7-cert2 of certified-asterisk, if Asterisk attempts to send a SIP request to a URI whose host portion starts with `.1` or `[.1]`, and res_resolver_unbound is loaded, Asterisk will crash with a SEGV. To receive a patch, users should upgrade to one of the following versions: 18.24.3, 20.9.3, 21.4.3, certified-18.9-cert12, certified-20.7-cert2. Two workarounds are ... • https://github.com/asterisk/asterisk/commit/42a2f4ccfa2c7062a15063e765916b3332e34cc4 • CWE-252: Unchecked Return Value CWE-476: NULL Pointer Dereference •
CVSS: 9.0EPSS: 34%CPEs: 5EXPL: 1CVE-2024-42365 – Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan
https://notcve.org/view.php?id=CVE-2024-42365
08 Aug 2024 — Asterisk is an open source private branch exchange (PBX) and telephony toolkit. Prior to asterisk versions 18.24.2, 20.9.2, and 21.4.2 and certified-asterisk versions 18.9-cert11 and 20.7-cert2, an AMI user with `write=originate` may change all configuration files in the `/etc/asterisk/` directory. This occurs because they are able to curl remote files and write them to disk, but are also able to append to existing files using the `FILE` function inside the `SET` application. This issue may result in privil... • https://packetstorm.news/files/id/182935 • CWE-267: Privilege Defined With Unsafe Actions CWE-1220: Insufficient Granularity of Access Control •
CVSS: 7.5EPSS: 0%CPEs: 31EXPL: 6CVE-2023-49786 – Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation
https://notcve.org/view.php?id=CVE-2023-49786
14 Dec 2023 — Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerabl... • https://packetstorm.news/files/id/176251 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-703: Improper Check or Handling of Exceptional Conditions •
CVSS: 8.5EPSS: 0%CPEs: 31EXPL: 0CVE-2023-37457 – Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'
https://notcve.org/view.php?id=CVE-2023-37457
14 Dec 2023 — Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an out... • https://github.com/asterisk/asterisk/commit/a1ca0268254374b515fa5992f01340f7717113fa • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.8EPSS: 0%CPEs: 31EXPL: 1CVE-2023-49294 – Asterisk Path Traversal vulnerability
https://notcve.org/view.php?id=CVE-2023-49294
14 Dec 2023 — Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, it is possible to read any arbitrary file even when the `live_dangerously` is not enabled. This allows arbitrary files to be read. Asterisk versions 18.20.1, 20.5.1, and 21.0.1, as well as certified-asterisk prior to 18.9-cert6, contain a fix for this issue. Asterisk es un conjunto de herramientas de telefonía y centralita pri... • https://packetstorm.news/files/id/177819 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 7.5EPSS: 1%CPEs: 23EXPL: 1CVE-2021-32558 – Gentoo Linux Security Advisory 202412-03
https://notcve.org/view.php?id=CVE-2021-32558
22 Jul 2021 — An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur. Se ha detectado un problema en Sangoma Asterisk versiones: 13.x anteriores a 13.38.3, versiones 16.x anteriores a 16.19.1, versiones 17.x anteriores a 17.9.4, y versiones 18.x anteriores a 18.5.1, y Certified Asterisk versiones ante... • http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 7.5EPSS: 0%CPEs: 17EXPL: 0CVE-2021-26712 – Gentoo Linux Security Advisory 202412-03
https://notcve.org/view.php?id=CVE-2021-26712
18 Feb 2021 — Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets. Los controles de acceso incorrectos en el archivo res_srtp.c en Sangoma Asterisk versiones 13.38.1, 16.16.0, 17.9.1 y 18.2.0 y Certified Asterisk 16.8-cert5, permite a un atacante remoto no autenticado finalizar prematuramente llamadas seguras al reproducir paquetes SRTP An u... • http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AST-2021-003.html •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 1CVE-2020-35776 – Gentoo Linux Security Advisory 202412-03
https://notcve.org/view.php?id=CVE-2020-35776
18 Feb 2021 — A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses. Un desbordamiento del búfer en el archivo res_pjsip_diversion.c en Sangoma Asterisk versiones 13.38.1, 16.15.1, 17.9.1 y 18.1.1, permite a un atacante remoto bloquear Asterisk al hacer un uso inapropiado deliberadamente de las respuestas SIP 181 If a registered user is tricked into dialing a malicious number that sen... • http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.9EPSS: 0%CPEs: 17EXPL: 0CVE-2021-26906 – Gentoo Linux Security Advisory 202412-03
https://notcve.org/view.php?id=CVE-2021-26906
18 Feb 2021 — An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure. Se detectó un problema en el archivo res_pjsip_session.c en Digium Asterisk versiones hasta 13.38.1; 14.x, 15.x y 16.xa 16.16.0;&... • http://packetstormsecurity.com/files/161477/Asterisk-Project-Security-Advisory-AST-2021-005.html • CWE-404: Improper Resource Shutdown or Release •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 1CVE-2020-35652
https://notcve.org/view.php?id=CVE-2020-35652
29 Jan 2021 — An issue was discovered in res_pjsip_diversion.c in Sangoma Asterisk before 13.38.0, 14.x through 16.x before 16.15.0, 17.x before 17.9.0, and 18.x before 18.1.0. A crash can occur when a SIP message is received with a History-Info header that contains a tel-uri, or when a SIP 181 response is received that contains a tel-uri in the Diversion header. Se detectó un problema en el archivo res_pjsip_diversion.c en Sangoma Asterisk versiones anteriores a 13.38.0, versiones 14.x hasta 16.x versiones anteriores a ... • https://downloads.asterisk.org/pub/security/AST-2020-003.html •