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: 7.8EPSS: 0%CPEs: 19EXPL: 2CVE-2020-14356 – kernel: Use After Free vulnerability in cgroup BPF component
https://notcve.org/view.php?id=CVE-2020-14356
A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system. Se detectó un fallo de desreferencia de puntero null en el subsistema cgroupv2 del kernel de Linux en versiones anteriores a 5.7.10, en la manera de reiniciar el sistema. Un usuario local podría usar este fallo para bloquear el sistema o escalar sus privilegios en el sistema. A use-after-free flaw was found in the Linux kernel’s cgroupv2 subsystem when rebooting the system. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html https://bugzilla.kernel.org/show_bug.cgi?id=208003 https://bugzilla.redhat.com/show_bug.cgi?id=1868453 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html https://lore.kernel.org/netdev/C • CWE-416: Use After Free CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 13EXPL: 0CVE-2020-24394 – kernel: umask not applied on filesystem without ACL support
https://notcve.org/view.php?id=CVE-2020-24394
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered. En el kernel de Linux versiones anteriores a 5.7.8, el archivo fs/nfsd/vfs.c (en el servidor NFS), puede establecer permisos incorrectos en nuevos objetos de un sistema de archivos cuando el sistema de archivos carece de soporte de ACL, también se conoce como CID-22cf8419f131. Esto ocurre porque no es considerada la umask actual. A vulnerability was found in NFSv4.2 in the Linux kernel, where a server fails to correctly apply umask when creating a new object on filesystem without ACL support (for example, ext4 with the "noacl" mount option). • http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 https://security.netapp.com/advisory/ntap-20200904-0003 https://usn.ubuntu.com/4465-1 https://usn.ubuntu.com/4483-1 https://usn.ubuntu.com/4485-1 https://www.orac • CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 10.0EPSS: 39%CPEs: 25EXPL: 32CVE-2020-1472 – Microsoft Netlogon Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-1472
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications. • https://www.exploit-db.com/exploits/49071 https://github.com/SecuraBV/CVE-2020-1472 https://github.com/dirkjanm/CVE-2020-1472 https://github.com/VoidSec/CVE-2020-1472 https://github.com/k8gege/CVE-2020-1472-EXP https://github.com/cube0x0/CVE-2020-1472 https://github.com/sv3nbeast/CVE-2020-1472 https://github.com/thatonesecguy/zerologon-CVE-2020-1472 https://github.com/CanciuCostin/CVE-2020-1472 https://github.com/0xkami/CVE-2020-1472 https://github.com/striveben&#x • CWE-287: Improper Authentication CWE-330: Use of Insufficiently Random Values •