CVE-2023-50387

Repositorio basado en https://github.com/knqyf263/CVE-2023-50387 en el que se hicieron varias modificaciones: Añadido resolver-fixed, que tiene una implementación de Unbound en la que se arregla la vulnerabilidad de la que hablamos. Creados scripts para la automatización de generación de claves...

Updated bind package fixes a security vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service CVE-2026-13204...

K000163212: BIND vulnerability CVE-2026-13204

Security Advisory Description 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. This issue affects BIND 9 versions 9.11.0...

K000163180: BIND vulnerability CVE-2026-11605

Security Advisory Description The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG...

USN-8696-1 bind9 vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service...

USN-8696-1: Bind vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service...

MiracleLinux 9 : unbound-1.24.2-3.el9_8.4 (AXSA:2026-1692:11)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1692:11 advisory. unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 unbound: Unbound: Denial of...

TencentOS Server 3: unbound (TSSA-2026:0904)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0904 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

TencentOS Server 3: bind9.16 (TSSA-2026:0925)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0925 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

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...

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...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: unbound (UTSA-2026-104802)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104802 advisory. In NLnet Labs Unbound up to and including version 1.25.1, when the validator builds the canonical RDATA form for an RRSIG-covered PX/RP/MINFO/SOA RRset, it computes...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: unbound (UTSA-2026-104836)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104836 advisory. In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, insufficient validation of the RRSIG.Labels field combined with premature cache writes during RFC 8198...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: bind (UTSA-2026-102694)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102694 advisory. 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...

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...

MiracleLinux 8 : bind-9.11.36-16.el8_10.14 (AXSA:2026-1553:08)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1553:08 advisory. bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field CVE-2026-13321 bind: bind9: Potential memory usage beyond configured limits...

MiracleLinux 8 : unbound-1.16.2-5.14.el8_10 (AXSA:2026-1573:10)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1573:10 advisory. unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 Tenable has extracted the preceding...

RLSA-2026:55784 Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 For more details about the security issues, including the impact, a CVSS...

unbound security update

An update is available for unbound. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The unbound packages provide a validating, recursive, and caching DNS or DNSS...

RockyLinux 8 : unbound (RLSA-2026:55784)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:55784 advisory. unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 Tenable has extracted the preceding...