CVE-2026-104074
MEDIUM
6,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Description
AI Translation Available
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.
908
Use of Uninitialized Resource
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Availability
Potential Impacts:
Read Memory
Read Application Data
Dos: Crash, Exit, Or Restart
Applicable Platforms
All platforms may be affected
https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27
https://github.com/coturn/coturn/pull/1878
https://github.com/coturn/coturn/releases/tag/4.11.0