Astra Linux – Vulnerability in bind9

If a server hosts a zone containing a “KEY” Resource Record, or if a resolver validates a “KEY” Resource Record from a DNSSEC-signed domain in its cache, a client can exhaust resolver CPU resources by sending a stream of SIG0 signed requests. This issue affects BIND 9 versions 9.0.0 through...

OESA-2026-2062 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 ...

TencentOS Server 4: bind9-next (TSSA-2025:0574)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0574 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

AZL-56105 CVE-2024-12705 affecting package bind for versions less than 9.20.5-1

Clients using DNS-over-HTTPS DoH can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic. This issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1...

SUSE CVE-2022-3204

A vulnerability named 'Non-Responsive Delegation Attack' NRDelegation Attack has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for...

AZL-11033 CVE-2022-3204 affecting package unbound for versions less than 1.16.3-1

A vulnerability named 'Non-Responsive Delegation Attack' NRDelegation Attack has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for...