Search criteria
35 vulnerabilities found for certified_asterisk by sangoma
FKIE_CVE-2025-1131
Vulnerability from fkie_nvd - Published: 2025-09-23 05:15 - Updated: 2025-11-03 18:15
Severity ?
Summary
A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions.
Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 |
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FKIE_CVE-2025-54995
Vulnerability from fkie_nvd - Published: 2025-08-28 15:16 - Updated: 2025-11-03 18:17
Severity ?
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | * | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 |
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},
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html"
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FKIE_CVE-2025-49832
Vulnerability from fkie_nvd - Published: 2025-08-01 18:15 - Updated: 2025-08-25 17:42
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/asterisk/asterisk/security/advisories/GHSA-mrq5-74j5-f5cr | Exploit, Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | * | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 |
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FKIE_CVE-2025-47779
Vulnerability from fkie_nvd - Published: 2025-05-22 17:15 - Updated: 2025-11-03 20:19
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages can be spoofed to appear to come from trusted entities. Even administrators who follow Security best practices and Security Considerations can be impacted. Therefore, abuse can lead to spam and enable social engineering, phishing and similar attacks. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | * | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 |
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}
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FKIE_CVE-2025-47780
Vulnerability from fkie_nvd - Published: 2025-05-22 17:15 - Updated: 2025-11-03 20:19
Severity ?
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | * | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 |
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}
],
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FKIE_CVE-2024-42491
Vulnerability from fkie_nvd - Published: 2024-09-05 18:15 - Updated: 2025-11-03 22:18
Severity ?
Summary
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 available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | asterisk | * | |
| sangoma | certified_asterisk | * | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 18.9 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 | |
| sangoma | certified_asterisk | 20.7 |
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{
"lang": "en",
"value": "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 available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations."
},
{
"lang": "es",
"value": "Asterisk es una centralita privada (PBX) de c\u00f3digo abierto. En versiones anteriores a las 18.24.3, 20.9.3 y 21.4.3 de Asterisk y las versiones 18.9-cert12 y 20.7-cert2 de certificate-asterisk, si Asterisk intenta enviar una solicitud SIP a una URI cuya parte de host comienza con `.1` o `[.1]`, y res_resolver_unbound est\u00e1 cargado, Asterisk se bloquear\u00e1 con un SEGV. Para recibir un parche, los usuarios deben actualizar a una de las siguientes versiones: 18.24.3, 20.9.3, 21.4.3, certificate-18.9-cert12, certificate-20.7-cert2. Hay dos workarounds disponibles. Deshabilite res_resolver_unbound configurando `noload = res_resolver_unbound.so` en modules.conf, o configure `rewrite_contact = yes` en todos los endpoints PJSIP. NOTA: Esto puede no ser apropiado para todas las configuraciones de Asterisk."
}
],
"id": "CVE-2024-42491",
"lastModified": "2025-11-03T22:18:06.950",
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}
FKIE_CVE-2023-49786
Vulnerability from fkie_nvd - Published: 2023-12-14 20:15 - Updated: 2024-11-21 08:33
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.
References
Impacted products
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"descriptions": [
{
"lang": "en",
"value": "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 vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6."
},
{
"lang": "es",
"value": "Asterisk es un conjunto de herramientas de telefon\u00eda y centralita privada de c\u00f3digo abierto. En Asterisk anteriores a las versiones 18.20.1, 20.5.1 y 21.0.1; as\u00ed como certificado-asterisco anterior a 18.9-cert6; Asterisk es susceptible a un DoS debido a una condici\u00f3n de ejecuci\u00f3n en la fase \"hello handshake\" del protocolo DTLS cuando maneja DTLS-SRTP para la configuraci\u00f3n de medios. Este ataque se puede realizar de forma continua, negando as\u00ed nuevas llamadas cifradas DTLS-SRTP durante el ataque. El abuso de esta vulnerabilidad puede provocar una denegaci\u00f3n de servicio masiva en servidores Asterisk vulnerables para llamadas que dependen de DTLS-SRTP. El commit d7d7764cb07c8a1872804321302ef93bf62cba05 contiene una soluci\u00f3n, que forma parte de las versiones 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6."
}
],
"id": "CVE-2023-49786",
"lastModified": "2024-11-21T08:33:50.533",
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}
FKIE_CVE-2023-37457
Vulnerability from fkie_nvd - Published: 2023-12-14 20:15 - Updated: 2024-11-21 08:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
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 outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.
References
Impacted products
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"value": "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 \u0027update\u0027 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 outside source. If the \u0027update\u0027 functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa."
},
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"value": "Asterisk es un conjunto de herramientas de telefon\u00eda y centralita privada de c\u00f3digo abierto. En las versiones de Asterisk 18.20.0 y anteriores, 20.5.0 y anteriores y 21.0.0; as\u00ed como ceritifed-asterisk 18.9-cert5 y anteriores, la funcionalidad de \u0027actualizaci\u00f3n\u0027 de la funci\u00f3n de dialplan PJSIP_HEADER puede exceder el espacio de b\u00fafer disponible para almacenar el nuevo valor de un encabezado. Al hacerlo, esto puede sobrescribir la memoria o provocar un bloqueo. Esto no se puede explotar externamente, a menos que el dialplan est\u00e9 escrito expl\u00edcitamente para actualizar un encabezado en funci\u00f3n de datos de una fuente externa. Si no se utiliza la funcionalidad de \u0027actualizaci\u00f3n\u0027, la vulnerabilidad no se produce. Hay un parche disponible en el commit a1ca0268254374b515fa5992f01340f7717113fa."
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],
"id": "CVE-2023-37457",
"lastModified": "2024-11-21T08:11:44.807",
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}
FKIE_CVE-2023-49294
Vulnerability from fkie_nvd - Published: 2023-12-14 20:15 - Updated: 2024-11-21 08:33
Severity ?
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
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.
References
Impacted products
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FKIE_CVE-2022-42705
Vulnerability from fkie_nvd - Published: 2022-12-05 21:15 - Updated: 2025-04-24 15:15
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.
References
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CVE-2025-1131 (GCVE-0-2025-1131)
Vulnerability from cvelistv5 – Published: 2025-09-23 04:31 – Updated: 2025-11-03 17:31
VLAI?
Title
Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation
Summary
A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions.
Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.
Severity ?
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
Impacted products
Credits
Abdul Mhanni
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CVE-2025-54995 (GCVE-0-2025-54995)
Vulnerability from cvelistv5 – Published: 2025-08-28 15:08 – Updated: 2025-11-03 17:45
VLAI?
Title
Asterisk remotely exploitable leak of RTP UDP ports and internal resources
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-49832 (GCVE-0-2025-49832)
Vulnerability from cvelistv5 – Published: 2025-08-01 17:57 – Updated: 2025-08-01 18:29
VLAI?
Title
Asterisk is Vulnerable to Remote DoS and possible RCE Attacks During Memory Allocation
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
Severity ?
6.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-47780 (GCVE-0-2025-47780)
Vulnerability from cvelistv5 – Published: 2025-05-22 16:56 – Updated: 2025-11-03 20:04
VLAI?
Title
cli_permissions.conf: deny option does not work for disallowing shell commands
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-47779 (GCVE-0-2025-47779)
Vulnerability from cvelistv5 – Published: 2025-05-22 16:54 – Updated: 2025-11-03 20:04
VLAI?
Title
Using malformed From header can forge identity with ";" or NULL in name portion
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages can be spoofed to appear to come from trusted entities. Even administrators who follow Security best practices and Security Considerations can be impacted. Therefore, abuse can lead to spam and enable social engineering, phishing and similar attacks. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
Severity ?
7.7 (High)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2024-49215 (GCVE-0-2024-49215)
Vulnerability from cvelistv5 – Published: 2024-10-21 00:00 – Updated: 2024-12-09 22:36
VLAI?
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2023-49294. Reason: This candidate is a reservation duplicate of CVE-2023-49294. Notes: All CVE users should reference CVE-2023-49294 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.
Show details on NVD website{
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CVE-2024-42491 (GCVE-0-2024-42491)
Vulnerability from cvelistv5 – Published: 2024-09-05 17:17 – Updated: 2025-11-03 22:04
VLAI?
Title
A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
Summary
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 available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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CVE-2023-49786 (GCVE-0-2023-49786)
Vulnerability from cvelistv5 – Published: 2023-12-14 19:47 – Updated: 2025-02-13 17:18
VLAI?
Title
Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation
Summary
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 vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
Impacted products
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CVE-2023-37457 (GCVE-0-2023-37457)
Vulnerability from cvelistv5 – Published: 2023-12-14 19:43 – Updated: 2025-02-13 17:01
VLAI?
Title
Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'
Summary
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 outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.
Severity ?
7.5 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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CVE-2023-49294 (GCVE-0-2023-49294)
Vulnerability from cvelistv5 – Published: 2023-12-14 19:40 – Updated: 2025-02-13 17:18
VLAI?
Title
Asterisk Path Traversal vulnerability
Summary
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.
Severity ?
4.9 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2025-1131 (GCVE-0-2025-1131)
Vulnerability from nvd – Published: 2025-09-23 04:31 – Updated: 2025-11-03 17:31
VLAI?
Title
Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation
Summary
A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions.
Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.
Severity ?
CWE
- CWE-427 - Uncontrolled Search Path Element
Assigner
References
Impacted products
Credits
Abdul Mhanni
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CVE-2025-54995 (GCVE-0-2025-54995)
Vulnerability from nvd – Published: 2025-08-28 15:08 – Updated: 2025-11-03 17:45
VLAI?
Title
Asterisk remotely exploitable leak of RTP UDP ports and internal resources
Summary
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
Severity ?
6.5 (Medium)
CWE
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-49832 (GCVE-0-2025-49832)
Vulnerability from nvd – Published: 2025-08-01 17:57 – Updated: 2025-08-01 18:29
VLAI?
Title
Asterisk is Vulnerable to Remote DoS and possible RCE Attacks During Memory Allocation
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
Severity ?
6.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-47780 (GCVE-0-2025-47780)
Vulnerability from nvd – Published: 2025-05-22 16:56 – Updated: 2025-11-03 20:04
VLAI?
Title
cli_permissions.conf: deny option does not work for disallowing shell commands
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
Severity ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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CVE-2025-47779 (GCVE-0-2025-47779)
Vulnerability from nvd – Published: 2025-05-22 16:54 – Updated: 2025-11-03 20:04
VLAI?
Title
Using malformed From header can forge identity with ";" or NULL in name portion
Summary
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages can be spoofed to appear to come from trusted entities. Even administrators who follow Security best practices and Security Considerations can be impacted. Therefore, abuse can lead to spam and enable social engineering, phishing and similar attacks. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.
Severity ?
7.7 (High)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2024-49215 (GCVE-0-2024-49215)
Vulnerability from nvd – Published: 2024-10-21 00:00 – Updated: 2024-12-09 22:36
VLAI?
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2023-49294. Reason: This candidate is a reservation duplicate of CVE-2023-49294. Notes: All CVE users should reference CVE-2023-49294 instead of this candidate. All references and descriptions in this candidate have been removed to prevent accidental usage.
Show details on NVD website{
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CVE-2024-42491 (GCVE-0-2024-42491)
Vulnerability from nvd – Published: 2024-09-05 17:17 – Updated: 2025-11-03 22:04
VLAI?
Title
A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
Summary
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 available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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CVE-2023-49786 (GCVE-0-2023-49786)
Vulnerability from nvd – Published: 2023-12-14 19:47 – Updated: 2025-02-13 17:18
VLAI?
Title
Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation
Summary
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 vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6.
Severity ?
7.5 (High)
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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},
{
"url": "http://seclists.org/fulldisclosure/2023/Dec/24"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html"
}
],
"source": {
"advisory": "GHSA-hxj9-xwr8-w8pq",
"discovery": "UNKNOWN"
},
"title": "Asterisk susceptible to Denial of Service via DTLS Hello packets during call initiation"
}
},
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CVE-2023-37457 (GCVE-0-2023-37457)
Vulnerability from nvd – Published: 2023-12-14 19:43 – Updated: 2025-02-13 17:01
VLAI?
Title
Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'
Summary
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 outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.
Severity ?
7.5 (High)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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{
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"version": "\u003e= 19.0.0, \u003c= 20.5.0"
},
{
"status": "affected",
"version": "= 21.0.0"
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{
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}
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}
],
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CVE-2023-49294 (GCVE-0-2023-49294)
Vulnerability from nvd – Published: 2023-12-14 19:40 – Updated: 2025-02-13 17:18
VLAI?
Title
Asterisk Path Traversal vulnerability
Summary
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.
Severity ?
4.9 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
{
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{
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"references": [
{
"name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-8857-hfmw-vg8f",
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"x_transferred"
],
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},
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"x_transferred"
],
"url": "https://github.com/asterisk/asterisk/blob/master/main/manager.c#L3757"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html"
}
],
"title": "CVE Program Container"
}
],
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"product": "asterisk",
"vendor": "asterisk",
"versions": [
{
"status": "affected",
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},
{
"status": "affected",
"version": "\u003e= 19.0.0, \u003c 20.5.1"
},
{
"status": "affected",
"version": "= 21.0.0"
},
{
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"version": "\u003c 18.9-cert6"
}
]
}
],
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},
{
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