[From nobody Tue Oct 6 14:37:08 2026 Received: (at submit) by bugs.debian.org; 14 Aug 2026 12:18:08 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=4.0 tests=BAYES_00, FOURLA, FROMDEVELOPER, NO_RELAYS,XMAILER_REPORTBUG autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 57; hammy, 150; neutral, 92; spammy, 0. spammytokens: hammytokens:0.000-+--XDebbugsCc, 0.000-+--X-Debbugs-Cc, 0.000-+--H*F:U*carnil, 0.000-+--H*Ad:N*Bug, 0.000-+--HTo:N*Debian Return-path: <carnil@debian.org> Received: via submission by buxtehude.debian.org with esmtp (Exim 4.96) (envelope-from <carnil@debian.org>) id 1wuqrP-002x1A-2N for submit@bugs.debian.org; Fri, 14 Aug 2026 12:18:08 +0000 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Salvatore Bonaccorso <carnil@debian.org> To: Debian Bug Tracking System <submit@bugs.debian.org> Subject: coturn: CVE-2026-73213 CVE-2026-73214 CVE-2026-73215 CVE-2026-73216 Message-ID: <178670988676.1141145.13803752451650540629.reportbug@eldamar.lan> X-Mailer: reportbug 13.2.0+nmu1 Date: Fri, 14 Aug 2026 14:18:06 +0200 Delivered-To: submit@bugs.debian.org Source: coturn Version: 4.15.0-1 Severity: grave Tags: security upstream Justification: user security hole X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org> Hi, The following vulnerabilities were published for coturn. CVE-2026-73213[0]: | Coturn is a free open source implementation of TURN and STUN Server. | Prior to 4.16.0, addr_less_eq() in src/client/ns_turn_ioaddr.c uses | a component-wise comparison for native IPv6 min-max intervals in | ioa_addr_in_range(), allowing an authenticated TURN client to relay | to an IPv6 peer that is numerically within a configured non-prefix- | aligned denied-peer-ip range but is classified as outside it. This | issue is fixed in version 4.16.0. CVE-2026-73214[1]: | Coturn is a free open source implementation of TURN and STUN Server. | Prior to 4.16.0, dtls_server_input_handler() and | create_new_connected_udp_socket() in src/apps/relay/dtls_listener.c | retain OpenSSL dtls1_reassemble_fragment() state for a 35-byte | fragmented ClientHello declaring a 650,000-byte handshake before | cookie validation, allowing an unauthenticated remote sender using | fresh UDP tuples to exhaust memory without TURN credentials, a | completed handshake, a valid cookie, or source spoofing. This issue | is fixed in version 4.16.0. CVE-2026-73215[2]: | Coturn is a free open source implementation of TURN and STUN Server. | Prior to 4.17.0, turnports_allocate_even() in | src/apps/relay/turn_ports.c marks the unused odd sibling port as | TPS_TAKEN_ODD for an EVEN-PORT Allocate request with reservation bit | R=0 even though no RTCP socket will release it, allowing an | authenticated client to permanently exhaust the relay port pool and | cause subsequent allocations to fail with STUN error 508. This issue | is fixed in version 4.17.0. CVE-2026-73216[3]: | Coturn is a free open source implementation of TURN and STUN Server. | Prior to 4.17.0, shutdown_client_connection() in | src/server/ns_turn_server.c prematurely calls dec_quota() and | releases bandwidth accounting during the first-stage close of a | mobility-enabled allocation while preserving the allocation, relay | socket, session, and mobility ticket, allowing an authenticated | client to bypass --user-quota and --total-quota and exhaust relay | ports. This issue is fixed in version 4.17.0. If you fix the vulnerabilities please also make sure to include the CVE (Common Vulnerabilities & Exposures) ids in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-73213 https://www.cve.org/CVERecord?id=CVE-2026-73213 [1] https://security-tracker.debian.org/tracker/CVE-2026-73214 https://www.cve.org/CVERecord?id=CVE-2026-73214 [2] https://security-tracker.debian.org/tracker/CVE-2026-73215 https://www.cve.org/CVERecord?id=CVE-2026-73215 [3] https://security-tracker.debian.org/tracker/CVE-2026-73216 https://www.cve.org/CVERecord?id=CVE-2026-73216 Regards, Salvatore ]