Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2025-57767

Gravedad CVSS v3.1:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
28/08/2025
Última modificación:
20/10/2025

Descripción

*** Pendiente de traducción *** 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.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* 20.15.2 (excluyendo)
cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* 21.0.0 (incluyendo) 21.10.2 (excluyendo)
cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* 22.0.0 (incluyendo) 22.5.2 (excluyendo)