Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| asterisk / asterisk | affected < 22.5.2; affected < 21.10.2; affected < 20.15.2 |
CWE
CWE-253
References
- https://github.com/asterisk/asterisk/security/advisories/GHSA-64qc-9x89-rx5j
- https://github.com/asterisk/asterisk/pull/1407
- https://github.com/asterisk/asterisk/commit/02993717b08f899d4aca9888062f35dfb198584f
ADP enrichment
No English description supplied.
No references supplied.