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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSangoma Asterisk
APPSangoma< 20.15.221.0.0 – 21.10.2 (bez)22.0.0 – 22.5.2 (bez)
Related vulnerabilities
Insecure Permissions w Sangoma Asterisk v22 — tworzenie plików poza katalogiem aplikacji
PJSIP is a free and open source multimedia communication library written in C language implementing standard b...
A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolk...
Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4...
In Sangoma Asterisk through 16.28.0, 17.x and 18.x through 18.14.0, and 19.x through 19.6.0, an incoming Setup...