CVE-2025-57767

{"id": "CVE-2025-57767", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-57767", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-08-28T17:12:27.086945Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "asterisk", "product": "asterisk", "versions": [{"status": "affected", "version": "< 22.5.2"}, {"status": "affected", "version": "< 21.10.2"}, {"status": "affected", "version": "< 20.15.2"}]}]}], "published": "2025-08-28T16:15:35.410", "references": [{"url": "https://github.com/asterisk/asterisk/commit/02993717b08f899d4aca9888062f35dfb198584f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/pull/1407", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-64qc-9x89-rx5j", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-253"}]}], "descriptions": [{"lang": "en", "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.15.2, 21.10.2, and 22.5.2, if a SIP request is received with an Authorization header that contains a realm that wasn't in a previous 401 response's WWW-Authenticate header, or an Authorization header with an incorrect realm was received without a previous 401 response being sent, the get_authorization_header() function in res_pjsip_authenticator_digest will return a NULL. This wasn't being checked before attempting to get the digest algorithm from the header which causes a SEGV. This issue has been patched in versions 20.15.2, 21.10.2, and 22.5.2. There are no workarounds."}, {"lang": "es", "value": "Asterisk es una centralita privada y un kit de herramientas de telefon\u00eda de c\u00f3digo abierto. Antes de las versiones 20.15.2, 21.10.2 y 22.5.2, si se recibe una solicitud SIP con una cabecera de autorizaci\u00f3n que contiene un *realm* que no estaba en la cabecera WWW-Authenticate de una respuesta 401 anterior, o si se recibe una cabecera de autorizaci\u00f3n con un *realm* incorrecto sin que se haya enviado una respuesta 401 anterior, la funci\u00f3n 'get_authorization_header()' en 'res_pjsip_authenticator_digest' devolver\u00e1 un valor NULL. Esto no se estaba verificando antes de intentar obtener el algoritmo de *digest* de la cabecera, lo que provoca un SEGV. Este problema ha sido parcheado en las versiones 20.15.2, 21.10.2 y 22.5.2. No hay soluciones alternativas."}], "lastModified": "2026-06-17T09:43:23.770", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3B5E2999-8025-49CD-8667-A65ABD7F008F", "versionEndExcluding": "20.15.2"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F46E463F-50A4-46C8-85EE-A60428426BD9", "versionEndExcluding": "21.10.2", "versionStartIncluding": "21.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B2B756F9-32E5-4A5C-A25A-9FE9364B0BAB", "versionEndExcluding": "22.5.2", "versionStartIncluding": "22.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}