CVE-2026-33254

An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default...

CVE-2026-33254 Resource exhaustion via DoQ/DoH3 connections

An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default...

CVE-2026-33254

An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default...

PowerDNS DNSdist 安全漏洞

PowerDNS DNSdist is a proxy software provided by PowerDNS that offers capabilities for DNS traffic load balancing and security protection. PowerDNS DNSdist has a security vulnerability that stems from the ability of clients to trigger excessive memory allocation by generating numerous error...

PT-2026-34439

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A client can trigger excessive memory allocation by generating numerous error responses over a single DoQ DNS over QUIC and DoH3 DNS over HTTP/3 connection,...

PowerDNS DNSdist 安全漏洞

PowerDNS DNSdist is a proxy software provided by PowerDNS that offers capabilities for DNS traffic load balancing and security protection. PowerDNS DNSdist has a security vulnerability, which stems from the ability of attackers to create a large number of concurrent DoQ or DoH3 connections, leadi...

PT-2026-34436

Name of the Vulnerable Software and Affected Versions DNSdist affected versions not specified Description An attacker can create a large number of concurrent DoQ DNS over QUIC or DoH3 DNS over HTTP/3 connections, causing unlimited memory allocation and leading to a denial of service. DoQ and DoH3...

[SECURITY] [DSA 6222-1] ngtcp2 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6222-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 21, 2026 https://www.debian.org/security/faq -...

Debian dsa-6222 : libngtcp2-16 - security update

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6222 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6222-1 [email protected] https://www.debian.org/security/...

ngtcp2: ngtcp2: Denial of service via stack buffer overflow during QUIC handshake

A flaw was found in ngtcp2, a C implementation of the IETF QUIC Quick UDP Internet Connections protocol. A remote attacker can exploit a stack buffer overflow vulnerability by sending specially crafted, large transport parameters during the QUIC handshake. This occurs when the qlog callback is...

Linux Distros Unpatched Vulnerability : CVE-2026-40170

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : rust1.93 (SUSE-SU-2026:1415-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1415-1 advisory. Security issue: - CVE-2026-31812: denial of service via crafted QUIC initial packet bsc1259623. Non...

BIT-DOTNET-SDK-2026-25667

ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a remote attacker to cause excessive CPU consumption by sending a crafted QUIC packet, because of an incorrect exit condition for HTTP/3 Encoder/Decoder stream processing...

BIT-DOTNET-2026-25667

ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and .NET 9.0 before 9.0.11 allows a remote attacker to cause excessive CPU consumption by sending a crafted QUIC packet, because of an incorrect exit condition for HTTP/3 Encoder/Decoder stream processing...

CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

ALPINE-CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

UBUNTU-CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

CVE-2026-40170

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...

EUVD-2026-23302

ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2qlogparameterssettransportparams serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport...