Package Instance

Bouncy Castle affected by timing side-channel for RSA key exchange ("The Marvin Attack")
An issue was discovered in Bouncy Castle Java TLS API and JSSE Provider before 1.78. Timing-based leakage may occur in RSA based handshakes because of exception processing.

Bouncy Castle certificate parsing issues cause high CPU usage during parameter evaluation.
An issue was discovered in ECCurve.java and ECCurve.cs in Bouncy Castle Java (BC Java) before 1.78, BC Java LTS before 2.73.6, BC-FJA before 1.0.2.5, and BC C# .Net before 2.3.1. Importing an EC certificate with crafted F2m parameters can lead to excessive CPU consumption during the evaluation of the curve parameters.

jose4j is vulnerable to DoS via compressed JWE content
In jose4j before 0.9.6, an attacker can cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exceptionally high compression ratio. When this token is processed by the server, it results in significant memory allocation and processing time during decompression.

Bouncy Castle crafted signature and public key can be used to trigger an infinite loop
An issue was discovered in Bouncy Castle Java Cryptography APIs starting in 1.73 and before 1.78. An Ed25519 verification code infinite loop can occur via a crafted signature and public key.

Netty's HttpPostRequestDecoder can OOM
### Summary
The `HttpPostRequestDecoder` can be tricked to accumulate data. I have spotted currently two attack vectors 

### Details
1. While the decoder can store items on the disk if configured so, there are no limits to the number of fields the form can have, an attacher can send a chunked post consisting of many small fields that will be accumulated in the `bodyListHttpData` list.
2. The decoder cumulates bytes in the `undecodedChunk` buffer until it can decode a field, this field can cumulate data without limits

### PoC

Here is a Netty branch that provides a fix + tests : https://github.com/vietj/netty/tree/post-request-decoder


Here is a reproducer with Vert.x (which uses this decoder) https://gist.github.com/vietj/f558b8ea81ec6505f1e9a6ca283c9ae3

### Impact
Any Netty based HTTP server that uses the `HttpPostRequestDecoder` to decode a form.