Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header values in the iterator to perform HTTP Response Splitting. This issue has been patched in version 4.1.86.Final. Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values.

Affected: Maven: io.netty:netty-codec-http

### Impact When calling `DefaultHttpHeaders.set` with an _iterator_ of values (as opposed to a single given value), header value validation was not performed, allowing malicious header values in the iterator to perform [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting).

### Patches The necessary validation was added in Netty 4.1.86.Final.

### Workarounds Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values.

### References [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting) [CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers](https://cwe.mitre.org/data/definitions/113.html)

### For more information If you have any questions or comments about this advisory: * Open an issue in [[example link to repo](https://github.com/netty/netty)](https://github.com/netty/netty) * Email us at [netty-security@googlegroups.com](mailto:netty-security@googlegroups.com)

netty-4.1.114-1.1 on GA media

Security update for netty, netty-tcnative

Affected: Ubuntu:Pro:16.04:LTS: netty, Ubuntu:16.04:LTS: netty-3.9, Ubuntu:Pro:18.04:LTS: netty, Ubuntu:18.04:LTS: netty-3.9, Ubuntu:Pro:20.04:LTS: netty, Ubuntu:22.04:LTS: netty

Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header values in the iterator to perform HTTP Response Splitting. This issue has been patched in version 4.1.86.Final. Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in NetApp ActiveIQ Unified Manager ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen und um Daten zu manipulieren.