CVE-2025-49832

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/asterisk/asterisk/security/advisories/GHSA-mrq5-74j5-f5cr	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:sangoma:certified_asterisk::::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5::::::
	cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6::::::

History

No history.

Information

Published : 2025-08-01 18:15

Updated : 2025-08-25 17:42

NVD link : CVE-2025-49832

Mitre link : CVE-2025-49832

CVE.ORG link : CVE-2025-49832

JSON object : View

Products Affected

sangoma

asterisk
certified_asterisk

CWE

CWE-476

NULL Pointer Dereference

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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."}, {"lang": "es", "value": "Asterisk es un kit de herramientas de telefon\u00eda y centralitas privadas de c\u00f3digo abierto. En las versiones hasta la 18.26.2 (incluida), entre las 20.00.0 y 20.15.0, 20.7-cert6, 21.00.0 y 22.00.0 a 22.5.0, existe una condici\u00f3n de denegaci\u00f3n de servicio (DoS) remota y un posible RCE en `asterisk/res/res_stir_shaken /verification.c` que puede explotarse cuando un atacante puede configurar un encabezado de identidad arbitrario, o si STIR/SHAKEN est\u00e1 habilitado, con la verificaci\u00f3n configurada en el perfil SIP asociado al endpoint atacado. Esto se ha corregido en las versiones 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 y 22.5.1."}], "lastModified": "2025-08-25T17:42:27.407", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A99F7956-1812-47C7-9649-C889E5A296EB", "versionEndExcluding": "18.26.3"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A3AD4D76-AF85-414E-8C6D-6C505D8D58D3", "versionEndExcluding": "20.15.1", "versionStartIncluding": "20.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D23AFE39-A2E8-45EE-9F0B-3A96731299FD", "versionEndExcluding": "21.10.1", "versionStartIncluding": "21.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFA121CE-5F37-4731-A1FA-B83F7E1AD845", "versionEndExcluding": "22.5.1", "versionStartIncluding": "22.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "44460225-C50D-414A-A2E0-F8280E1C1E1D", "versionEndIncluding": "18.9"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79225576-AF7C-4099-9624-C53578A7417F"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29323E6E-12C9-46C7-B29C-25E0CD537A8E"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E563972-78C0-40A0-83EA-6A3BA3D71946"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64209621-D458-432A-B0E3-C8D0B6698574"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B148158A-8354-41C2-A44C-2C0DAABAD217"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D4D96E8-1F01-42B8-9181-67DEB12D9DD2"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "50D1B02A-F5F9-48EB-A396-412821F5D602"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CBB2891-448F-4C4E-8A47-2283A8F71FE6"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}