CVE-2025-30187 Denial of service via crafted DoH exchange in PowerDNS DNSdist

In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources...

MAL-2025-9939 Malicious code in @zalastax/nolb-_doh (npm)

The package @zalastax/nolb-doh was found to contain malicious code...

ROS-20250710-01

Vulnerability in the DoH implementation of the DNS BIND server is related to the allocation of unlimited memory. Exploitation The vulnerability could allow an attacker acting remotely to cause a denial of service...

SUSE CVE-2025-30194

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

CVE-2025-30194

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

CVE-2025-30194 Denial of service via crafted DoH exchange

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

CVE-2025-30194 Denial of service via crafted DoH exchange

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

CVE-2025-30194

Summary (CVE-2025-30194) : When DNSdist is configured to serve DoH through the nghttp2 provider, an attacker can trigger an illegal memory access (double-free) via a crafted DoH exchange, causing a denial of service (crash). The vulnerability affects DNSdist’s DoH handling with nghttp2; an upgrad...

CVE-2025-30194 Denial of service via crafted DoH exchange

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

CVE-2025-30194

When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A...

dnsdist -- Denial of service via crafted DoH exchange

[email protected] reports: When DNSdist is configured to provide DoH via the nghttp2provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access double-free and crash of DNSdist, causing a denial of service. The remedy is: upgrade t...

curl: Use after free (read) in curl_multi_perform with DoH and Proxy options, and resolve timeouts

Summary: summary of the vulnerability There is a use after free in curlmultiperform when DoH resolver timeouts and CURLOPTPROXY is used see reproducer and stack trace I found it via fuzzing with https://github.com/catenacyber/curl-fuzzer/tree/proxy after fixing a small memory leak in curl Another...

OESA-2025-1105 bind security update

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

Important: bind

Issue Overview: It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate...

Important: bind

Issue Overview: It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate...

Cloudflare Thwarts Largest-Ever 3.8 Tbps DDoS Attack Targeting Global Sectors

Cloudflare has disclosed that it mitigated a record-breaking distributed denial-of-service DDoS attack that peaked at 3.8 terabits per second Tbps and lasted 65 seconds. The web infrastructure and security company said it fended off "over one hundred hyper-volumetric L3/4 DDoS attacks throughout...

openSUSE 15 Security Update : coredns (openSUSE-SU-2024:0319-1)

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2024:0319-1 advisory. Update to version 1.11.3: optimize the performance for high qps 6767 bump deps Fix zone parser error handling 6680 Add alternate option to forwar...

Fedora 39 : bind / bind-dyndb-ldap (2024-ef8a7031e7)

The remote Fedora 39 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2024-ef8a7031e7 advisory. Update to BIND 9.18.28 Security Fixes - A malicious DNS client that sent many queries over TCP but never read the responses could cause a server to...

CVE-2024-25581 Transfer requests received over DoH can lead to a denial of service in DNSdist

When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer AXFR or IXFR over DNS over HTTPS, causing the process to stop...

CVE-2024-25581 Transfer requests received over DoH can lead to a denial of service in DNSdist

When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer AXFR or IXFR over DNS over HTTPS, causing the process to stop...