bind: BIND: Denial of Service via crafted DNSSEC reply

A flaw was found in BIND. A remote attacker, by sending a specially crafted DNSSEC-signed authoritative zone reply, can trigger an unexpected program exit in the validating resolver. This can lead to a Denial of Service DoS for the affected BIND resolver...

bind: BIND: Denial of Service via crafted DNSSEC reply

A flaw was found in BIND. A remote attacker, by sending a specially crafted DNSSEC-signed authoritative zone reply, can trigger an unexpected program exit in the validating resolver. This can lead to a Denial of Service DoS for the affected BIND resolver...

CentOS Linux 8.5 [TuxCare] Security Update: bind / bind-chroot / bind-devel / bind-export-devel / etc (CENTOS8.5:CLSA-2026:1785562289)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1785562289 advisory. - A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The...

CVE-2026-80274

A flaw was found in BIND. A remote attacker, by sending a specially crafted DNSSEC-signed authoritative zone reply, can trigger an unexpected program exit in the validating resolver. This can lead to a Denial of Service DoS for the affected BIND resolver. Mitigation To mitigate this issue, disabl...

CVE-2026-80274 Validating resolver can abort while caching a mismatched NOQNAME proof

If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. This issue affects BIND 9 versions...

CVE-2026-80274 Validating resolver can abort while caching a mismatched NOQNAME proof

If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. This issue affects BIND 9 versions...

[SECURITY] Fedora 43 Update: unbound-1.25.2-1.fc43

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

[SECURITY] Fedora 44 Update: unbound-1.25.2-1.fc44

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

K000162286: BIND vulnerability CVE-2026-1519

Security Advisory Description If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive...

CVE-2026-11622

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...

CVE-2026-11622

DNSSEC validating resolver issue (CVE-2026-11622) in BIND 9 affects multiple 9.x branches, where under a random subdomain attack the validator may experience runaway memory usage when queries exceed validation throughput; impact can exceed max-cache-size. Patched in BIND 9.20.26 and 9.21.24 per I...

[SECURITY] Fedora 43 Update: unbound-1.25.1-1.fc43

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

[SECURITY] Fedora 43 Update: unbound-1.24.2-1.fc43

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

[SECURITY] Fedora 43 Update: unbound-1.24.1-1.fc43

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

[SECURITY] Fedora 41 Update: unbound-1.23.1-1.fc41

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

GHSA-CRJG-W57M-RQQF DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks

Impact Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones. Patches Users should upgrade to dnsjava v3.6.0 Workarounds Although not recommended, only using a non-validating resolver, will remove the vulnerability...

DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks

Impact Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones. Patches Users should upgrade to dnsjava v3.6.0 Workarounds Although not recommended, only using a non-validating resolver, will remove the vulnerability...

GHSA-MMWX-RJ87-VFGR DNSJava affected by KeyTrap - NSEC3 closest encloser proof can exhaust CPU resources

Impact Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones. Patches Users should upgrade to dnsjava v3.6.0 Workarounds Although not recommended, only using a non-validating resolver, will remove the vulnerability...

DNSJava affected by KeyTrap - NSEC3 closest encloser proof can exhaust CPU resources

Impact Users using the ValidatingResolver for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones. Patches Users should upgrade to dnsjava v3.6.0 Workarounds Although not recommended, only using a non-validating resolver, will remove the vulnerability...

PT-2024-21058

Name of the Vulnerable Software and Affected Versions dnsjava versions prior to 3.6.0 Description The issue arises from dnsjava not checking the relevance of records in DNS replies to the query, allowing an attacker to respond with records from different zones. This can lead to applications blind...