Source: coturn Version: 4.15.0-1 Severity: grave Tags: security upstream Justification: user security hole X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for coturn. CVE-2026-68555[0]: | Coturn is a free open source implementation of TURN and STUN Server. | In 4.15.0, an authenticated TURN user can repeatedly resume one | allocation from fresh UDP 5-tuples without completing a handoff when | the server enables --mobility. mobile_begin_transition() in | src/server/ns_turn_server.c disarms each new session's allocation | timeout and overwrites the allocation's single mobile_pending_resume | link, leaving earlier pending sessions unreachable by the cleanup | path, while copy_auth_parameters() ignores inc_quota() failure. The | attacker can therefore retain unbounded server-side sessions and | exhaust process memory even when --user-quota=1 is configured. This | issue is fixed in version 4.16.0. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-68555 https://www.cve.org/CVERecord?id=CVE-2026-68555 [1] https://github.com/coturn/coturn/security/advisories/GHSA-hpq3-g7x4-h7xx [2] https://github.com/coturn/coturn/commit/a97f1924bb435bec49d6d91ae01fa2487c2e1bf7 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
