Withdrawn by the publisher.

Affected: CleanStart: apache-nifi

Multiple security vulnerabilities affect the apache-nifi package. yawkat LZ4 Java provides LZ4 compression for Java. See references for individual vulnerability details.

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` calls `decompressor.writeInbound(data.retain())` and does not release the retained buffer on the error path, eventually exhausting direct memory and crashing the JVM. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

Affected: Maven: io.netty:netty-codec-http2

### Summary

A remote, unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` retains the frame buffer but never releases it on the error path, so its reference count never returns to zero. Repeating this over a long-lived HTTP/2 connection exhausts direct memory and crashes the JVM with `OutOfMemoryError` — a denial of service.

### Details

In `codec-http2/src/main/java/io/netty/handler/codec/http2/DelegatingDecompressorFrameListener.java`, `Http2Decompressor.decompress(...)` does:

```java // around line 433 decompressor.writeInbound(data.retain()); ```

The argument `data.retain()` is evaluated **before** `writeInbound(...)` executes, incrementing the buffer's reference count (`refCnt: 1 -> 2`). The very first statement of `EmbeddedChannel.writeInbound(...)` is `ensureOpen()` (`EmbeddedChannel.java:360`), which throws `ClosedChannelException` when the decompressor's internal `EmbeddedChannel` has already been closed.

When that happens: - the `DATA` payload has been `retain()`ed but never entered the pipeline, so the decoder's `finally { release() }` never runs; - the surrounding `catch (Throwable t)` block in `decompress(...)` (around line 451) does **not** release the extra reference; - the input buffer therefore can never…

netty-4.1.136-1.1 on GA media

vertx-core: Eclipse Vert.x: Information disclosure via improper handling of HTTP 30x redirects io.vertx/vertx-web: Eclipse Vert.x Web Client: Information disclosure via improper cookie domain validation io.quarkus/quarkus-rest: io.quarkus/quarkus-vertx-http: io.quarkus.resteasy.reactive/resteasy-reactive: Quarkus REST - Unbounded multipart MIME part-header accumulation allows remote OOM denial of service org.apache.httpcomponents.core5/httpcore5: Apache HttpComponents Core: Denial of Service via excessive HTTP headers org.apache.httpcomponents.core5/httpcore5-h2: Apache HttpComponents Core: Denial of Service via oversized HTTP/2 HPACK header blocks io.netty/netty-codec-http: Netty: Denial of Service via SPDY SETTINGS frame processing netty: io.netty/netty-codec-http: Netty: Denial of Service via SPDY header decompression amplification io.netty/netty-codec-haproxy: Netty codec-haproxy: Denial of Service via crafted PROXY protocol v2 message netty: io.netty/netty-codec-http: Netty: Denial of Service via memory exhaustion in SPDY-to-HTTP codec io.netty/netty-codec-http: Netty: Security control bypass allows unauthorized requests via null origin header io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak io.netty/netty-codec-http: Netty: Protocol version confusion in netty-codec-http (WebSocket) io.netty/netty-codec-http: Netty: Memory exhaustion in netty-codec-http (decompression bomb) io.netty/netty-codec-http2: Netty: Improper header neutrali…

Affected: Ubuntu:Pro:14.04:LTS: netty, Ubuntu:Pro:16.04:LTS: netty, Ubuntu:Pro:18.04:LTS: netty, Ubuntu:Pro:20.04:LTS: netty, Ubuntu:Pro:22.04:LTS: netty, Ubuntu:Pro:24.04:LTS: netty, Ubuntu:Pro:26.04:LTS: netty

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` calls `decompressor.writeInbound(data.retain())` and does not release the retained buffer on the error path, eventually exhausting direct memory and crashing the JVM. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

Ein Angreifer kann mehrere Schwachstellen in Netty ausnutzen, um Sicherheitsprüfungen zu umgehen, Anfragen oder Header zu manipulieren, Zertifikatsprüfungen zu unterlaufen sowie einen Denial of Service zu verursachen.