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CVSS: 4.3EPSS: 59%CPEs: 4EXPL: 0

iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals. iterator.c en NLnet Labs Unbound anterior a 1.5.1 no limita el encadenamiento de la delegación, lo que permite a atacantes remotos causar una denegación de servicio (consumo de memoria y CPU) a través de un número grande o infinito de remisiones. A denial of service flaw was found in unbound that an attacker could use to trick the unbound resolver into following an endless loop of delegations, consuming an excessive amount of resources. • http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.html http://unbound.net/downloads/patch_cve_2014_8602.diff http://www.debian.org/security/2014/dsa-3097 http://www.kb.cert.org/vuls/id/264212 http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.securityfocus.com/bid/71589 http://www.ubuntu.com/usn/USN-2484-1 https://unbound.net/downloads/CVE-2014-8602.txt https://access.redhat.com/security/cve/CVE-2014-8602 https:/ • CWE-399: Resource Management Errors CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 6.4EPSS: 0%CPEs: 37EXPL: 0

The resolver in Unbound before 1.4.11 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack. El resolver en Unbound anterior a v1.4.11 sobrescribe los nombres de caché del servidor y los valores TTL en los registros NS durante la tramitación de una respuesta a una consulta de registro A, permitiendo a atacantes remotos provocar la resolubilidad continuada de nombres de dominio revocados a través de un ataque de "nombres de dominio fantasma" (ghost domain names) • https://www.isc.org/files/imce/ghostdomain_camera.pdf •

CVSS: 7.8EPSS: 1%CPEs: 39EXPL: 0

validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528. validator/val_nsec3.c en Unbound antes de v1.4.13p2, no realiza adecuadamente el postprocesamiento de la prueba para zonas NSEC3-signed, lo que permite a servidores DNS remotos provocar una denegación de servicio (caída del demonio) a través de una respuesta con formato incorrecto que carece de registros NSEC3 esperados. Una vulnerabilidad diferente de CVE-2011-4528. • http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html http://osvdb.org/77910 http://secunia.com/advisories/47326 http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt http://www.debian.org/security/2011/dsa-2370 http://www.kb.cert.org/vuls/id/209659 https://exchange.xforce.ibmcloud.com/vulnerabilities/71868 • CWE-399: Resource Management Errors •

CVSS: 5.0EPSS: 0%CPEs: 41EXPL: 0

Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response. Unbound antes de v1.4.13p2 intenta liberar memoria sin asignar durante el procesado de registros CNAME duplicados, lo que permite a servidores DNS remotos provocar una denegación de servicio (caída del demonio) a través de una respuesta modificada. • http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html http://osvdb.org/77909 http://secunia.com/advisories/47326 http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt http://www.debian.org/security/2011/dsa-2370 http://www.kb.cert.org/vuls/id/209659 • CWE-399: Resource Management Errors •

CVSS: 4.3EPSS: 1%CPEs: 22EXPL: 0

daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling. daemon/worker.c de Unbound 1.x anteriores a 1.4.10, cuando la funcionalidad de depuración de errores ("debugging") y la opción de "interface-automatic" están activadas, permite a atacantes remotos provocar una denegación de servicio (fallo en aserción y finalización del demonio) a través de una petición DNS modificada que provoca un manejo de error incorrecto. • http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061243.html http://osvdb.org/72750 http://secunia.com/advisories/44865 http://unbound.nlnetlabs.nl/downloads/CVE-2011-1922.txt http://www.kb.cert.org/vuls/id/531342 http://www.securityfocus.com/bid/47986 https://exchange.xforce.ibmcloud.com/vulnerabilities/67645 • CWE-399: Resource Management Errors •