Insecure generation of random numbers In io.netty:netty-resolver-dns
Description
Netty is a network application framework for development of protocol servers and clients. 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 static UDP source port. This combination reduces the entropy of DNS queries, enabling DNS Cache Poisoning (Kaminsky attack). Versions 4.1.135.Final and 4.2.15.Final patch the issue.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 maven | 4.2.15.final, 4.1.135.final | ||
 debian 11 | - | ||
debian 12 | - | ||
debian 13 | - | ||
debian 14 | - |
Aliases
1. 2. 3. 4. 5. 6. 7.
References
1. 2. 3.