SB2025112138 - Multiple vulnerabilities in Submariner

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Main Vulnerability Database SB2025112138

SB2025112138 - Multiple vulnerabilities in Submariner

Published: November 21, 2025

Security Bulletin ID SB2025112138
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2025-47950)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the DNS-over-QUIC (DoQ) server implementation in server_quic.go. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


2) Reachable assertion (CVE-ID: CVE-2025-59530)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to premature HANDSHAKE_DONE frame. A remote attacker can trigger an assertion in a quic-go client and cause a deial of service condition on the target system.


Remediation

Install update from vendor's website.

References