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      <title>CVE-2025-58057 — Netty's BrotliDecoder is vulnerable to DoS via zip bomb style attack</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-58057</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; netty&lt;/p&gt;
&lt;p&gt;Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers &amp;amp; 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.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; netty&lt;/p&gt;
&lt;p&gt;Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers &amp;amp; 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.&lt;/p&gt;</content:encoded>
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