Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the processRecord method of DTLSReliableHandshake, where the DTLSReassembler constructor allocates a bytelength buffer directly from the 24-bit handshake length field without checking it...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the processRecord method of DTLSReliableHandshake, where the DTLSReassembler constructor allocates a bytelength buffer directly from the 24-bit handshake length field without checking it...

UBUNTU-CVE-2026-45416

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates...

EUVD-2026-36436

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates...

CVE-2026-45416

Netty CVE-2026-45416 affects pre-4.1.135.Final and pre-4.2.15.Final versions. In SslClientHelloHandler.decode(), the 24-bit TLS handshake length is read and, if a ClientHello does not fit in the first record, Netty eagerly allocates ctx.alloc().buffer(handshakeLength). If maxClientHelloLength is ...

Netty: SNI handler pre-allocates up to 16 MiB from nine attacker bytes

SslClientHelloHandler.decode reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first record, eagerly allocates ctx.alloc.bufferhandshakeLength line 161. The guard at line 140 is handshakeLength maxClientHelloLength && maxClientHelloLength != 0, and the...

PT-2026-47607

Name of the Vulnerable Software and Affected Versions Netty ionetty:netty-handler affected versions not specified Description An uncontrolled memory allocation issue exists in the SslClientHelloHandler.decode function. When a ClientHello does not fit in the first record, the system eagerly...