asterisk: Asterisk is an open source private branch exchange and telephony toolkit
CVE-2025-57767 is fixed in asterisk on 1 platform by DEBIAN-CVE-2025-57767 (version 1:22.5.2~dfsg+~cs6.15.60671435-1), released August 28, 2025. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 14 | 1:22.5.2~dfsg+~cs6.15.60671435-1 | DEBIAN-CVE-2025-57767 | Aug 28, 2025 |
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