Bug 2514629 - CVE-2026-73215 coturn: Coturn: Denial of Service due to incorrect port allocation [epel-all]
Summary: CVE-2026-73215 coturn: Coturn: Denial of Service due to incorrect port alloca...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: coturn
Version: epel10
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Robert Scheck
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["9673f448-7093-4df6-bd41-b...
Depends On:
Blocks: CVE-2026-73215
TreeView+ depends on / blocked
 
Reported: 2026-08-12 14:06 UTC by Samuele Negrini
Modified: 2026-08-18 00:46 UTC (History)
1 user (show)

Fixed In Version: coturn-4.17.2-1.el10_3 coturn-4.17.2-1.el9 coturn-4.17.2-1.el8 coturn-4.17.2-1.el10_2
Clone Of:
Environment:
Last Closed: 2026-08-18 00:26:42 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Samuele Negrini 2026-08-12 14:06:59 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.
Comment 1 Fedora Update System 2026-08-15 22:59:36 UTC 
FEDORA-EPEL-2026-172be4b944 (coturn-4.17.2-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-172be4b944
Comment 2 Fedora Update System 2026-08-15 23:00:00 UTC 
FEDORA-EPEL-2026-f925c99de6 (coturn-4.17.2-1.el10_2) has been submitted as an update to Fedora EPEL 10.2.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-f925c99de6
Comment 3 Fedora Update System 2026-08-15 23:00:18 UTC 
FEDORA-EPEL-2026-b07a912c20 (coturn-4.17.2-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-b07a912c20
Comment 4 Fedora Update System 2026-08-15 23:00:28 UTC 
FEDORA-EPEL-2026-326533586c (coturn-4.17.2-1.el8) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-326533586c
Comment 5 Fedora Update System 2026-08-18 00:26:42 UTC 
FEDORA-EPEL-2026-172be4b944 (coturn-4.17.2-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 6 Fedora Update System 2026-08-18 00:27:48 UTC 
FEDORA-EPEL-2026-b07a912c20 (coturn-4.17.2-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 7 Fedora Update System 2026-08-18 00:36:14 UTC 
FEDORA-EPEL-2026-326533586c (coturn-4.17.2-1.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 8 Fedora Update System 2026-08-18 00:46:46 UTC 
FEDORA-EPEL-2026-f925c99de6 (coturn-4.17.2-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.
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