cve-2026-5950-bind9-resolver-dos

CVE-2026-5950 - DoS резолвера BIND 9 Исследовательские заметки и рекомендации по защите от CVE-2026-5950 — уязвимости неограниченного цикла повторной отправки в конечном автомате резолвера BIND 9. Обзор CVE-2026-5950 затрагивает рекурсивные резолверы BIND 9. При определенных условиях обработки...

BIND-9-Cache-Poisoning-PoC---CVE-2025-40778

BIND 9 Cache Poisoning PoC - CVE-2025-40778 Концептуальный обзор Эта уязвимость позволяет атакующему повредить DNS-кэш резолвера BIND, заставляя легитимных пользователей перенаправляться на вредоносные IP-адреса без их ведома. Основная логика атаки: Атака основана на эксплуатации доверия. Жертва...

Security Bulletin:Vulnerabilities exists in NPS of IBM Netezza Appliance

Summary Vulnerabilities identified in NPS of IBM Netezza Software have been addressed in version 11.3.1.3-IF3. Vulnerability Details CVEID:CVE-2026-69247 DESCRIPTION: cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 44.0.0 until 50.0.0,...

F5 Networks BIG-IP : BIND vulnerability (K000163234)

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K000163234 advisory. An attacker who knows or guesses that a resolver uses RPZ with wildcard CNAME policies can craft query names long enou...

bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation

A flaw was found in BIND. A remote attacker can exploit this vulnerability by sending maliciously-constructed packets to BIND servers configured for TKEY-based authentication via GSS-API Generic Security Service Application Program Interface tokens. This can lead to excessive memory consumption,...

bind: bind9: Unexpected exit with NSEC and NSEC3 both present

If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof...

Astra Linux – Vulnerability in bind9

If a BIND resolver performs DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU resources. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field

The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards

It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...

bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation

A flaw was found in BIND. A remote attacker can exploit this vulnerability by sending maliciously-constructed packets to BIND servers configured for TKEY-based authentication via GSS-API Generic Security Service Application Program Interface tokens. This can lead to excessive memory consumption,...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards

It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...

bind: bind9: Unexpected exit with NSEC and NSEC3 both present

If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof...

bind9: bind: Potential wildcard CNAME RPZ policy bypass

A flaw was found in BIND 9, a widely used Domain Name System DNS software. A remote attacker could exploit this by sending specially crafted, excessively long DNS queries. This could bypass Response Policy Zone RPZ rules, which are designed to block access to malicious domains, and potentially...

bind: bind9: Potential memory usage beyond configured limits

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...

bind9: bind: Potential wildcard CNAME RPZ policy bypass

A flaw was found in BIND 9, a widely used Domain Name System DNS software. A remote attacker could exploit this by sending specially crafted, excessively long DNS queries. This could bypass Response Policy Zone RPZ rules, which are designed to block access to malicious domains, and potentially...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards

It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...

bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation

A flaw was found in BIND. A remote attacker can exploit this vulnerability by sending maliciously-constructed packets to BIND servers configured for TKEY-based authentication via GSS-API Generic Security Service Application Program Interface tokens. This can lead to excessive memory consumption,...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for ea...

bind9: bind: Potential wildcard CNAME RPZ policy bypass

A flaw was found in BIND 9, a widely used Domain Name System DNS software. A remote attacker could exploit this by sending specially crafted, excessively long DNS queries. This could bypass Response Policy Zone RPZ rules, which are designed to block access to malicious domains, and potentially...

RLSA-2026:54654 Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...