CVE-2025-57767 (GCVE-0-2025-57767)
Vulnerability from cvelistv5
Published
2025-08-28 15:33
Modified
2025-08-28 17:12
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-253 - Incorrect Check of Function Return Value
Summary
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.
References
security-advisories@github.comhttps://github.com/asterisk/asterisk/commit/02993717b08f899d4aca9888062f35dfb198584f
security-advisories@github.comhttps://github.com/asterisk/asterisk/pull/1407
security-advisories@github.comhttps://github.com/asterisk/asterisk/security/advisories/GHSA-64qc-9x89-rx5j
Impacted products
Vendor Product Version
asterisk asterisk Version: < 22.5.2
Version: < 21.10.2
Version: < 20.15.2
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