GHSA-FCCG-MWVH-QQG4 Netty: Fragmented ClientHello records trigger quadratic pre-handshake reassembly in default SNI parsing

Summary Netty's default SNI entrypoint reparses and recopies previously received ClientHello fragments on every additional TLS handshake record. A remote peer can send a small first record that advertises a large ClientHello length and then drip the body in many tiny records, causing superlinear...

Netty: Fragmented ClientHello records trigger quadratic pre-handshake reassembly in default SNI parsing

Summary Netty's default SNI entrypoint reparses and recopies previously received ClientHello fragments on every additional TLS handshake record. A remote peer can send a small first record that advertises a large ClientHello length and then drip the body in many tiny records, causing superlinear...

Security update for openssl-1_1-livepatches

This update for openssl-11-livepatches fixes the following issues: CVE-2026-63072: heap buffer overflow in CMS key unwrapping bsc1275133, bsc1274788. HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713. Patch Instruction...

SUSE-SU-2026:4042-1 Security update for openssl-1_1-livepatches

This update for openssl-11-livepatches fixes the following issues: - CVE-2026-63072: heap buffer overflow in CMS key unwrapping bsc1275133, bsc1274788. - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713...

Security update for openssl-1_1-livepatches

This update for openssl-11-livepatches fixes the following issues: CVE-2026-63072: heap buffer overflow in CMS key unwrapping bsc1275133, bsc1274788. HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713. Patch Instruction...

SUSE-SU-2026:4036-1 Security update for openssl-1_1-livepatches

This update for openssl-11-livepatches fixes the following issues: - CVE-2026-63072: heap buffer overflow in CMS key unwrapping bsc1275133, bsc1274788. - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713...

erlang: Erlang/OTP: Denial of Service in TLS 1.3 session ticket handling

A flaw was found in Erlang/OTP's SSL Secure Sockets Layer application. An unauthenticated remote attacker can send a specially crafted ClientHello message to a TLS 1.3 server with session tickets enabled. This can permanently disrupt the server's ability to handle session tickets, leading to a...

SUSE-SU-2026:23585-1 Security update for openssl-3-x86_64-v3-livepatches

This update for openssl-3-x8664-v3-livepatches fixes the following issues: - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271713, bsc1271712. - CVE-2026-14457: RPK server signature algorithm selection can dereference a missing...

SUSE-SU-2026:23358-1 Security update for openssl-3-livepatches

This update for openssl-3-livepatches fixes the following issues: - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713...

SUSE CVE-2026-75596

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler constructors use the pre-handshake ClientHello aggregation path in handler/src/main/java/io/netty/handler/ssl/SslClientHelloHandler.java at...

PT-2026-89727

This update for openssl-3-livepatches fixes the following issues: - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713...

SUSE SLES15 Security Update : openssl-3-livepatches (SUSE-SU-2026:3651-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:3651-1 advisory. - HollowByte: DoS vector against OpenSSL TLS ClientHello via remote, attacker-controlled memory allocations bsc1271712, bsc1271713. Tenable has extract...

Linux Distros Unpatched Vulnerability : CVE-2026-75596

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler...

Improper Check for Unusual or Exceptional Conditions

Overview io.netty:netty-handler is a library that provides an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which...

DEBIAN-CVE-2026-75596

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler constructors use the pre-handshake ClientHello aggregation path in handler/src/main/java/io/netty/handler/ssl/SslClientHelloHandler.java at...

CVE-2026-75596

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler constructors use the pre-handshake ClientHello aggregation path in handler/src/main/java/io/netty/handler/ssl/SslClientHelloHandler.java at...

UBUNTU-CVE-2026-75596

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler constructors use the pre-handshake ClientHello aggregation path in handler/src/main/java/io/netty/handler/ssl/SslClientHelloHandler.java at...

CVE-2026-75596

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, the default io.netty.handler.ssl.SniHandler constructors use the pre-handshake ClientHello aggregation path in handler/src/main/java/io/netty/handler/ssl/SslClientHelloHandler.java at...

CVE-2026-75595 Netty: SNI Routing Bypass via Fragmented TLS ClientHello Causing Fallback to Default SslContext

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Fina and 4.2.17.Final, io.netty.handler.ssl.SslClientHelloHandlerdecode checks the wrong offset before reading the four-byte TLS handshake header, so a ClientHello whose handshake header spans records can cause...

CVE-2026-75595

Netty (asynchronous, event-driven network framework) is affected by an SNI routing bypass in io.netty.handler.ssl.SslClientHelloHandler#decode . The method checks the wrong offset before reading the four-byte TLS handshake header, so a ClientHello whose handshake header spans records triggers an ...