SB2025052818 - Inefficient algorithmic complexity in Netty QUIC codec
Published: May 28, 2025
Security Bulletin ID
SB2025052818
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Inefficient Algorithmic Complexity (CVE-ID: CVE-2025-29908)
CWE-ID: CWE-407 - Inefficient Algorithmic Complexity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a hash collision vulnerability in the hash map used to manage connections. A remote attacker can cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs)
Remediation
Install update from vendor's website.