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netty

Netty versions prior to 4.1.135.Final and 4.2.15.Final have a vulnerability in their DNS resolver where a predictable pseudo-random number generator (PRNG) is used for DNS transaction IDs and a static UDP source port is the default. This reduces the entropy of DNS queries and enables DNS cache poisoning attacks, such as the Kaminsky attack. The issue is patched in versions 4.1.135.Final and 4.2.15.Final.

Netty, a network application framework, had a vulnerability in its DNS resolver prior to versions 4.1.135.Final and 4.2.15.Final. The DNS resolver used a predictable PRNG for generating DNS transaction IDs and defaulted to a static UDP source port. This combination reduces the entropy of DNS queries, making them susceptible to DNS cache poisoning attacks (Kaminsky attack). The vulnerability is addressed by patches in versions 4.1.135.Final and 4.2.15.Final.

Netty versions prior to 4.1.135.Final and 4.2.15.Final have a vulnerability in their DNS resolver where a predictable pseudo-random number generator (PRNG) is used for DNS transaction IDs and a static UDP source port is the default. This reduces the entropy of DNS queries and enables DNS cache poiso

Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DNS resolver uses a predictable PRNG for generating DNS transaction IDs and defaults to a… (CVE-2026-45673)

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Threats Tagged 'ubuntu-cve-2026-45673'

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