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CVSS: 7.8EPSS: 96%CPEs: 3EXPL: 0

buffer.c in named in ISC BIND 9.x before 9.9.7-P3 and 9.10.x before 9.10.2-P4 allows remote attackers to cause a denial of service (assertion failure and daemon exit) by creating a zone containing a malformed DNSSEC key and issuing a query for a name in that zone. Vulnerabilidad en buffer.c en nombrado en ISC BIND 9.x en versiones anteriores a 9.9.7-P3 y 9.10.x en versiones anteriores a 9.10.2-P4, permite a atacantes remotos causar una denegación de servicio (error de aserción y salida del demonio) mediante la creación de una zona de contención, una clave DNSSEC mal formada y la emisión de una consulta para un nombre en esa zona. A denial of service flaw was found in the way BIND parsed certain malformed DNSSEC keys. A remote attacker could use this flaw to send a specially crafted DNS query (for example, a query requiring a response from a zone containing a deliberately malformed key) that would cause named functioning as a validating resolver to crash. • http://lists.apple.com/archives/security-announce/2015/Oct/msg00009.html http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168686.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165750.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165810.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165996.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167465.html http://lists.opensuse.org/op • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •

CVSS: 7.8EPSS: 97%CPEs: 2EXPL: 2

named in ISC BIND 9.x before 9.9.7-P2 and 9.10.x before 9.10.2-P3 allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via TKEY queries. Vulnerabilidad identificada en ISC BIND 9.x en versiones anteriores a 9.9.7-P2 y 9.10.x en versiones anteriores a 9.10.2-P3, permite a atacantes remotos causar una denegación de servicio (fallo en la comprobación de REQUIRE y salida del demonio) a través de consultas TKEY. A flaw was found in the way BIND handled requests for TKEY DNS resource records. A remote attacker could use this flaw to make named (functioning as an authoritative DNS server or a DNS resolver) exit unexpectedly with an assertion failure via a specially crafted DNS request packet. • https://www.exploit-db.com/exploits/37723 https://www.exploit-db.com/exploits/37721 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10718 http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163006.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163007.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163015.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00043.html http://lists.opensuse.org/opensuse-se • CWE-19: Data Processing Errors CWE-617: Reachable Assertion •

CVSS: 4.3EPSS: 5%CPEs: 1EXPL: 0

ISC BIND before 9.7.2-P2, when DNSSEC validation is enabled, does not properly handle certain bad signatures if multiple trust anchors exist for a single zone, which allows remote attackers to cause a denial of service (daemon crash) via a DNS query. ISC BIND antes de su versión v9.7.2-P2, cuando la validación DNSSEC está habilitada, no controla correctamente ciertas firmas incorrectas si existen múltiples puntos confianza para una sola zona, lo que permite a atacantes remotos provocar una denegación de servicio (bloqueo del demonio) a través de una consulta DNS. • http://ftp.isc.org/isc/bind9/9.7.2-P2/RELEASE-NOTES-BIND-9.7.2-P2.html http://lists.vmware.com/pipermail/security-announce/2011/000126.html http://support.avaya.com/css/P8/documents/100124923 http://www.debian.org/security/2010/dsa-2130 http://www.mandriva.com/security/advisories?name=MDVSA-2010:253 http://www.redhat.com/support/errata/RHSA-2010-0976.html http://www.securityfocus.com/archive/1/516909/100/0/threaded http://www.securityfocus.com/bid/45385 http:/ • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

Internet Systems Consortium (ISC) BIND 9.6.0 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077 and CVE-2009-0025. Internet Systems Consortium (ISC) BIND en versiones 9.6.0 y anteriores no comprueba adecuadamente el valor de retorno de la función EVP_VerifyFinal de OpenSSL, lo cual permite a atacantes remotos eludir la validación del certificado a través de una firma SSL/TLS malformada, se trata de una vulnerabilidad similar a CVE-2008-5077 y CVE-2009-0025. • http://groups.google.com/group/comp.protocols.dns.bind/browse_thread/thread/49ef622c8329fd33 http://secunia.com/advisories/33559 http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.540362 http://www.mandriva.com/security/advisories?name=MDVSA-2009:037 http://www.vupen.com/english/advisories/2009/0043 https://www.isc.org/node/373 • CWE-252: Unchecked Return Value CWE-295: Improper Certificate Validation •

CVSS: 6.8EPSS: 11%CPEs: 35EXPL: 3

The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2; and other implementations allow remote attackers to spoof DNS traffic via a birthday attack that uses in-bailiwick referrals to conduct cache poisoning against recursive resolvers, related to insufficient randomness of DNS transaction IDs and source ports, aka "DNS Insufficient Socket Entropy Vulnerability" or "the Kaminsky bug." El protocolo DNS, como es implementado en (1) BIND 8 y 9 en versiones anteriores a 9.5.0-P1, 9.4.2-P1 y 9.3.5-P1; (2) Microsoft DNS en Windows 2000 SP4, XP SP2 y SP3 y Server 2003 SP1 y SP2; y otras implementaciones permiten a atacantes remotos suplantar el tráfico DNS a través de un ataque de un cumpleaños que usa referencias in-bailiwick para llevar a cabo un envenenamiento del caché contra resolutores recursivos, relacionado con la insifuciente aleatoriedad de la ID de la transacción DNS y los puertos de origen, vulnerabilidad también conocida como "DNS Insufficient Socket Entropy Vulnerability" o "the Kaminsky bug". • https://www.exploit-db.com/exploits/6122 https://www.exploit-db.com/exploits/6130 https://www.exploit-db.com/exploits/6123 ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-009.txt.asc http://blog.invisibledenizen.org/2008/07/kaminskys-dns-issue-accidentally-leaked.html http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01523520 http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID • CWE-331: Insufficient Entropy •