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: 8.8EPSS: 0%CPEs: 10EXPL: 0CVE-2020-15862 – net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution
https://notcve.org/view.php?id=CVE-2020-15862
Net-SNMP through 5.8 has Improper Privilege Management because SNMP WRITE access to the EXTEND MIB provides the ability to run arbitrary commands as root. Net-SNMP versiones hasta 5.7.3, presenta una Administración de Privilegios Inapropiada porque el acceso de SNMP WRITE en el EXTEND MIB provee la capacidad de ejecutar comandos arbitrarios como root. A flaw was found in Net-SNMP through version 5.73, where an Improper Privilege Management issue occurs due to SNMP WRITE access to the EXTEND MIB allows running arbitrary commands as root. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. • https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=965166 https://github.com/net-snmp/net-snmp/commit/77f6c60f57dba0aaea5d8ef1dd94bcd0c8e6d205 https://salsa.debian.org/debian/net-snmp/-/commit/fad8725402752746daf0a751dcff19eb6aeab52e https://security-tracker.debian.org/tracker/CVE-2020-15862 https://security.gentoo.org/glsa/202008-12 https://security.netapp.com/advisory/ntap-20200904-0001 https://usn.ubuntu.com/4471-1 https://access.redhat.com/security/cve/CVE-2020-15862 https://bugzilla.redhat.co • CWE-250: Execution with Unnecessary Privileges CWE-269: Improper Privilege Management •
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: 42%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 •
CVSS: 7.5EPSS: 4%CPEs: 10EXPL: 1CVE-2020-12100 – dovecot: Resource exhaustion via deeply nested MIME parts
https://notcve.org/view.php?id=CVE-2020-12100
In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts. En Dovecot versiones anteriores a 2.3.11.3, la recursividad no controlada en submission, lmtp, y lda permite a atacantes remotos causar una denegación de servicio (consumo de recursos) por medio de un mensaje de correo electrónico diseñado con partes MIME profundamente anidadas A flaw was found in dovecot. A remote attacker could cause a denial of service by repeatedly sending emails containing MIME parts containing malicious content of which dovecot will attempt to parse. The highest threat from this vulnerability is to system availability. • http://seclists.org/fulldisclosure/2021/Jan/18 http://www.openwall.com/lists/oss-security/2020/08/12/1 http://www.openwall.com/lists/oss-security/2021/01/04/3 https://dovecot.org/security https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2 http • CWE-674: Uncontrolled Recursion •