knot-doq

Knot Resolver 6.3.0 — DNS-over-QUIC 힙 오버플로 → RCE PoC Knot Resolver의 DNS-over-QUICDoQ 수신 경로에서 원격으로 트리거 가능한 힙 버퍼 오버플로를 이용해 knot-resolver 서비스 사용자 권한으로 원격 코드 실행을 달성하는 개념 증명PoC입니다. 구성 요소: kresd DoQ 리스너daemon/quicconn.c 영향 버전: Knot Resolver 6.3.06.3.0-cznic.1bookworm에서 검증 수정 버전: Knot Resolver...

OESA-2026-4197 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4195 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4196 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4194 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

SUSE CVE-2026-78227

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

MGASA-2026-0451 Updated unbound packages fixes security vulnerabilities

Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY Possible heap buffer overflow during DNSSEC canonicalization CNAME synthesis could lead to heap corruption Possible ZONEMD verification bypass window Use-after-free in DoQ stream output buffer on reset re-transmission...

Updated unbound packages fixes security vulnerabilities

Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY Possible heap buffer overflow during DNSSEC canonicalization CNAME synthesis could lead to heap corruption Possible ZONEMD verification bypass window Use-after-free in DoQ stream output buffer on reset re-transmission...

SUSE CVE-2026-82399

CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC request paths in plugin/pkg/doh/doh.go, core/dnsserver/serverquic.go, and core/dnsserver/servergrpc.go call dns.Msg.Unpack on attacker-controlled DNS section counts before...

SUSE CVE-2026-86003

CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC listeners in plugin/pkg/doh/doh.go, core/dnsserver/serverquic.go, and core/dnsserver/servergrpc.go call dns.Msg.Unpack without the dns.DefaultMsgAcceptFunc request policy...

CVE-2026-78227

A flaw was found in Unbound. This vulnerability occurs in the DNS-over-QUIC DoQ stream output buffer when a client sends a RESETSTREAM, causing the output buffer to be freed while retransmission entries still point to it. A remote attacker, by querying Unbound over DoQ, withholding acknowledgment...

CVE-2026-78227

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

DEBIAN-CVE-2026-78227

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

EUVD-2026-80288

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

CVE-2026-78227

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

CVE-2026-82399: Allocation of Resources Without Limits or Throttling

CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC request paths in plugin/pkg/doh/doh.go, core/dnsserver/serverquic.go, and core/dnsserver/servergrpc.go call dns.Msg.Unpack on attacker-controlled DNS section counts before...

CVE-2026-86003: Unintended Proxy or Intermediary

CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC listeners in plugin/pkg/doh/doh.go, core/dnsserver/serverquic.go, and core/dnsserver/servergrpc.go call dns.Msg.Unpack without the dns.DefaultMsgAcceptFunc request policy...

CVE-2026-78227: Use After Free

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

PT-2026-93370

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.22.0 through 1.26.1 Description A use-after-free issue occurs when the software is compiled for DNS-over-QUIC DoQ support using the --with-libngtcp2 flag. In this configuration, each DoQ stream utilizes an output...

Linux Distros Unpatched Vulnerability : CVE-2026-78227

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each D...