Description
Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Transfer-Encoding headers across multiple lines or use values like 'chunked, xchunked' to bypass validation and decode messages as chunked when the final coding is not chunked, enabling request smuggling attacks.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
netty netty
Default version status: unaffected
4.1.133.Final to < 4.1.138.Finalaffected4.2.13.Final to < 4.2.18.Finalaffected
pkg:maven/io.netty/netty-codec-httpReferences
- https://github.com/netty/netty/security/advisories/GHSA-hcvj-94mj-jp5c ↗
- https://github.com/netty/netty/commit/ca87393b0e9e13c493d213a268e727a6d44e1585 ↗
- https://github.com/netty/netty/commit/640d4d3324f7b811a4903d0730c8ccb35500500c ↗
- https://github.com/netty/netty/blob/netty-4.1.137.Final/codec-http/src/main/java/io/netty/handler/codec/http/HttpObjectDecoder.java#L866 ↗
- https://github.com/netty/netty/releases/tag/netty-4.1.138.Final ↗
- https://github.com/netty/netty/releases/tag/netty-4.2.18.Final ↗
- https://github.com/netty/netty ↗
- https://www.vulncheck.com/advisories/netty-4.1.133-final-through-4.1.137-final-and-4.2.13-final-through-4.2.17-final-http-request-smuggling-via-transfer-encoding ↗