Description


Coturn 4.10.0 contains an uninitialized memory disclosure vulnerability that allows remote unauthenticated attackers to leak stack memory contents by sending a TURN Allocate request without credentials. Attackers can exploit the stun_init_error_response_common_str() function in src/client/ns_turn_msg.c, which fails to zero-initialize the avalue buffer before computing its length with strlen() and copying leaked stack bytes into the ERROR-CODE reason phrase, exposing pointer fragments that weaken ASLR and enable precise version fingerprinting.

Related CPE's


Could not find any relations

Weaknesses



CWE-908

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5.3 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-07T15:17:02.760Z

41 hours ago

Last modified

2026-10-07T21:17:08.473Z

35 hours ago