CVEvulnerability

CVE-2025-57767

7.5 HIGH Published 2025-08-28 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-08-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-253

Description

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.

Affected configurations

• sangoma asterisk (< 20.15.2) • sangoma asterisk (>= 21.0.0 < 21.10.2) • sangoma asterisk (>= 22.0.0 < 22.5.2)

Related

Weakness · CWE (1)

  • CWE-253 Incorrect Check of Function Return Value weakness

References