fkie_cve-2025-49832
Vulnerability from fkie_nvd
Published
2025-08-01 18:15
Modified
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
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
security-advisories@github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-mrq5-74j5-f5crExploit, 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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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "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."
    },
    {
      "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."
    }
  ],
  "id": "CVE-2025-49832",
  "lastModified": "2025-08-25T17:42:27.407",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "value": "CWE-476"
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      "source": "security-advisories@github.com",
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    }
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}


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