CVE-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 •
CVE-2020-8574
https://notcve.org/view.php?id=CVE-2020-8574
Active IQ Unified Manager for Linux versions prior to 9.6 ship with the Java Management Extension Remote Method Invocation (JMX RMI) service enabled allowing unauthorized code execution to local users. Active IQ Unified Manager para Linux versiones anteriores a 9.6, incluido con el servicio Java Management Extension Remote Method Invocation (JMX RMI) habilitado permite una ejecución de código no autorizado a usuarios locales • https://security.netapp.com/advisory/ntap-20200803-0001 •
CVE-2020-8575
https://notcve.org/view.php?id=CVE-2020-8575
Active IQ Unified Manager for VMware vSphere and Windows versions prior to 9.5 are susceptible to a vulnerability which allows administrative users to cause Denial of Service (DoS). Active IQ Unified Manager para VMware vSphere y Windows versiones anteriores a 9.5, son susceptibles a una vulnerabilidad que permite a usuarios administrativos causar una Denegación de Servicio (DoS) • https://security.netapp.com/advisory/ntap-20200803-0002 •
CVE-2020-16166 – kernel: information exposure in drivers/char/random.c and kernel/time/timer.c
https://notcve.org/view.php?id=CVE-2020-16166
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c. El kernel de Linux versiones hasta 5.7.11, permite a atacantes remotos realizar observaciones que ayudan a obtener información confidencial sobre el estado interno de la red RNG, también se conoce como CID-f227e3ec3b5c. Esto está relacionado con los archivos drivers/char/random.c y kernel/time/timer.c A flaw was found in the Linux kernel. The generation of the device ID from the network RNG internal state is predictable. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html https://arxiv.org/pdf/2012.07432.pdf https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f227e3ec3b5cad859ad15666874405e8c1bbc1d4 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c51f8f88d705e06bd696d7510aff22b33eb8e638 https://github.com/torvalds/linux/commit/f227e3ec3b5cad859ad15666874405e8c1bbc1d4 https://lists.debian& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-330: Use of Insufficiently Random Values •
CVE-2020-15707 – GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
https://notcve.org/view.php?id=CVE-2020-15707
Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. Se detectaron desbordamientos de enteros en las funciones grub_cmd_initrd y grub_initrd_init en el componente efilinux de GRUB2, como se incluye en Debian, Red Hat y Ubuntu (la funcionalidad no está incluida aguas arriba de GRUB2), conllevando a un desbordamiento del búfer en la región heap de la memoria. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html http://ubuntu.com/security/notices/USN-4432-1 http://www.openwall.com/lists/oss-security/2020/07/29/3 https://access.redhat.com/security/vulnerabilities/grub2bootloader https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 https://security.gentoo.org/ • CWE-190: Integer Overflow or Wraparound CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •