Description
Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.dns.AbstractDnsRecord, io.netty.handler.codec.dns.DefaultDnsRecordDecoder.decodeRecord(), and io.netty.handler.codec.dns.DnsCodecUtil.decompressDomainName() failed to release retained or newly allocated ByteBuf objects when IDN.toASCII() or encodeDomainName() rejected a malformed domain name, allowing unauthenticated remote DNS packets to leak direct memory incrementally until denial of service. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
netty netty
< 4.1.136.Finalaffected>= 4.2.0.Final, < 4.2.16.Finalaffected
References
- https://github.com/netty/netty/security/advisories/GHSA-mfg7-5gfp-c4w3 ↗
- https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b ↗
- https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 ↗
- https://github.com/netty/netty/releases/tag/netty-4.1.136.Final ↗
- https://github.com/netty/netty/releases/tag/netty-4.2.16.Final ↗