CVSS: 7.5EPSS: 2%CPEs: 16EXPL: 0CVE-2020-8623 – A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c
https://notcve.org/view.php?id=CVE-2020-8623
In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with "--enable-native-pkcs11" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker En BIND versiones 9.10.0 -) 9.11.21, 9.12.0 -) 9.16.5, 9.17.0 -) 9.17.3, también afecta a versiones 9.10.5-S1 -) 9.11.21-S1 de BIND 9 Supported Preview Edition, un atacante que puede llegar a un sistema vulnerable con un paquete de consulta especialmente diseñado puede desencadenar un bloqueo. Para ser vulnerable, el sistema debe: * estar ejecutando BIND que fue creado con "--enable-native-pkcs11" * estar firmando una o más zonas con una clave RSA * ser capaz de recibir consultas de un posible atacante A flaw was found in bind. An assertion failure can occur when a specially crafted query for a zone signed with an RSA key. BIND must be compiled with "--enable-native-pkcs11" for the system to be affected. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html https://kb.isc.org/docs/cve-2020-8623 https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP https://security. • CWE-400: Uncontrolled Resource Consumption CWE-617: Reachable Assertion •
CVSS: 6.5EPSS: 0%CPEs: 19EXPL: 0CVE-2020-8622 – A truncated TSIG response can lead to an assertion failure
https://notcve.org/view.php?id=CVE-2020-8622
In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit. En BIND versiones 9.0.0 -) 9.11.21, 9.12.0 -) 9.16.5, 9.17.0 -) 9.17.3, también afecta a versiones 9.9.3-S1 -) 9.11.21-S1 de BIND 9 Supported Preview Edition, un atacante sobre la ruta de la red para una petición firmada por TSIG, u operando el servidor que recibe la petición firmada por TSIG, podría enviar una respuesta truncada a esa petición, desencadenando un fallo de aserción y causando que el servidor salga. Alternativamente, un atacante fuera de la ruta tendría que adivinar correctamente cuándo fue enviada una petición firmada por TSIG, junto con otras características del paquete y mensaje, y falsificar una respuesta truncada para desencadenar un fallo de aserción, causando la salida del servidor. A flaw was found in bind. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html https://kb.isc.org/docs/cve-2020-8622 https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP https://security. • CWE-400: Uncontrolled Resource Consumption CWE-617: Reachable Assertion •
CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 0CVE-2020-8621 – Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c
https://notcve.org/view.php?id=CVE-2020-8621
In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected. En BIND versiones 9.14.0 -) 9.16.5, 9.17.0 -) 9.17.3, si un servidor está configurado con minimización de QNAME y "forward first", entonces un atacante que pueda enviarle consultas puede ser capaz de desencadenar la condición que causará que el servidor se bloquee. Los servidores con "forward only" no están afectados. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html https://kb.isc.org/docs/cve-2020-8621 https://security.gentoo.org/glsa/202008-19 https://security.netapp.com/advisory/ntap-20200827-0003 https://usn.ubuntu.com/4468-1 https://www.synology.com/security/advisory/Synology_SA_20_19 • CWE-617: Reachable Assertion •
CVSS: 7.5EPSS: 2%CPEs: 12EXPL: 0CVE-2020-8620
https://notcve.org/view.php?id=CVE-2020-8620
In BIND 9.15.6 -> 9.16.5, 9.17.0 -> 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit. En BIND versiones 9.15.6 -) 9.16.5, 9.17.0 -) 9.17.3, un atacante que puede establecer una conexión TCP con el servidor y enviar datos en esa conexión puede explotar esto para desencadenar el fallo de aserción, causando la salida del servidor. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html https://kb.isc.org/docs/cve-2020-8620 https://security.gentoo.org/glsa/202008-19 https://security.netapp.com/advisory/ntap-20200827-0003 https://usn.ubuntu.com/4468-1 https://www.synology.com/security/advisory/Synology_SA_20_19 • CWE-617: Reachable Assertion •
CVSS: 4.9EPSS: 0%CPEs: 11EXPL: 0CVE-2020-8619 – A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer
https://notcve.org/view.php?id=CVE-2020-8619
In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable. En las versiones ISC BIND9 BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: A menos que un servidor de nombres proporcione un servicio autorizado para una o más zonas y al menos una zona contenga una entrada sin terminal vacía que contenga un carácter asterisco ("*"), este defecto no puede ser encontrado. Un posible atacante al que se le permite cambiar el contenido de la zona, podría introducir teóricamente dicho registro para explotar esta condición y causar una denegación de servicio, aunque consideramos que el uso de este vector es poco probable porque cualquier ataque requeriría de un nivel de privilegio significativo y que sea fácilmente rastreable A flaw was found in bind when an asterisk character is present in an empty non-terminal location within the DNS graph. This flaw could trigger an assertion failure, causing bind to crash. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html https://kb.isc.org/docs/cve-2020-8619 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNFTTYJ5JJJJ6QG3AHXJGDIIEYMDFWFW https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EIOXMJX4N3LBKC65OXNBE52W4GAS7QEX https://security.netapp.com/advisory/ntap-20200625-0003 https://usn.ubuntu.com/4399-1 • CWE-404: Improper Resource Shutdown or Release CWE-617: Reachable Assertion •