Allocation of Resources Without Limits or Throttling Affecting netty package, versions <1:4.1.48-11


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.05% (61st percentile)

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  • Snyk IDSNYK-DEBIAN14-NETTY-11798019
  • published14 Aug 2025
  • disclosed13 Aug 2025

Introduced: 13 Aug 2025

CVE-2025-55163  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:14 netty to version 1:4.1.48-11 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty package and not the netty package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.

CVSS Base Scores

version 3.1