Improper Handling of Highly Compressed Data (Data Amplification) Affecting netty-tcnative package, versions <2.0.73-150200.3.30.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Social Trends
EPSS
0.56% (42nd percentile)

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  • Snyk IDSNYK-SLES156-NETTYTCNATIVE-12597365
  • published10 Sept 2025
  • disclosed9 Sept 2025

Introduced: 9 Sep 2025

CVE-2025-58057  (opens in a new tab)
CWE-409  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 netty-tcnative to version 2.0.73-150200.3.30.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-tcnative package and not the netty-tcnative package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression.

CVSS Base Scores

version 3.1