Asymmetric denial of service - ReDoS In io.netty:netty-codec-dns
Description
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface: malicious DNS responses can exploit the decoder, and user-influenced hostnames can exploit the encoder. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 maven | 4.2.13.final, 4.1.133.final | ||
 debian 11 | - | ||
debian 12 | - | ||
debian 13 | - | ||
debian 14 | - |
Aliases
1. 2. 3. 4. 5. 6. 7.
References
1. 2. 3.