CVSS: 7.1EPSS: 0%CPEs: 18EXPL: 1CVE-2021-3739
https://notcve.org/view.php?id=CVE-2021-3739
28 Sep 2021 — A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo de desreferencia de puntero NULL en la función btrfs_rm_device en el archivo fs/btrfs/volumes.c en el Kernel de Linux, donde el desencadenamiento del bug req... • https://bugzilla.redhat.com/show_bug.cgi?id=1997958 • CWE-476: NULL Pointer Dereference •
CVSS: 4.7EPSS: 0%CPEs: 19EXPL: 1CVE-2021-3753 – kernel: a race out-of-bound read in vt
https://notcve.org/view.php?id=CVE-2021-3753
28 Sep 2021 — A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. Se observó un problema de carrera en el la función vt_k_ioctl en el archivo drivers/tty/vt/vt_ioctl.c en el kernel de Linux, que puede causar una lectura fuera de límites en vt ya que el acceso de escritura a vc_mode no está ... • https://bugzilla.redhat.com/show_bug.cgi?id=1999589 • CWE-125: Out-of-bounds Read CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-3732 – kernel: overlayfs: Mounting overlayfs inside an unprivileged user namespace can reveal files
https://notcve.org/view.php?id=CVE-2021-3732
28 Sep 2021 — A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. Se ha encontrado un fallo en el subsistema OverlayFS del kernel de Linux en la forma en que el usuario monta el sistema de archivos TmpFS con OverlayFS. Este fallo permite a un usuario local acceder a archivos ocultos que no deberían ser accesibles A flaw was found in the Linux kernel’s OverlayFS... • https://bugzilla.redhat.com/show_bug.cgi?id=1995249 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 4.9EPSS: 0%CPEs: 4EXPL: 0CVE-2021-20317 – kernel: timer tree corruption leads to missing wakeup and system freeze
https://notcve.org/view.php?id=CVE-2021-20317
27 Sep 2021 — A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP. Se ha encontrado un fallo en el kernel de Linux. Un árbol de temporizadores corrompido hacía que faltara el despertar de la tarea en la función timerqueue_add en el archivo lib/timerqueue.c. • https://bugzilla.redhat.com/show_bug.cgi?id=2005258 • CWE-665: Improper Initialization •
CVSS: 8.8EPSS: 0%CPEs: 15EXPL: 1CVE-2021-3653 – kernel: SVM nested virtualization issue in KVM (AVIC support)
https://notcve.org/view.php?id=CVE-2021-3653
08 Sep 2021 — A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system... • http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html • CWE-862: Missing Authorization •
CVSS: 7.0EPSS: 0%CPEs: 31EXPL: 0CVE-2021-40490
https://notcve.org/view.php?id=CVE-2021-40490
03 Sep 2021 — A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. Se ha detectado una condición de carrera en la función ext4_write_inline_data_end en el archivo fs/ext4/inline.c en el subsistema ext4 en el kernel de Linux versiones hasta 5.13.13 • https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=9e445093e523f3277081314c864f708fd4bd34aa • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 4.9EPSS: 0%CPEs: 11EXPL: 0CVE-2021-3635 – kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50
https://notcve.org/view.php?id=CVE-2021-3635
13 Aug 2021 — A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands. Se ha detectado un fallo en la implementación del netfilter del kernel de Linux en versiones anteriores a 5.5-rc7. Un usuario con acceso de root (CAP_SYS_ADMIN) es capaz de hacer entrar en pánico al sistema cuando emite comandos netfilter netflow. A flaw was found in the Linux kernel netfilter implementation. • https://bugzilla.redhat.com/show_bug.cgi?id=1976946 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 1CVE-2021-38198
https://notcve.org/view.php?id=CVE-2021-38198
08 Aug 2021 — arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. El archivo arch/x86/kvm/mmu/paging_tmpl.h en el kernel de Linux versiones anteriores a 5.12.11, computa incorrectamente los permisos de acceso de una página sombra, conllevando a un fallo de página de protección de invitados • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 •
CVSS: 6.5EPSS: 0%CPEs: 9EXPL: 0CVE-2021-38199
https://notcve.org/view.php?id=CVE-2021-38199
08 Aug 2021 — fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection. El archivo fs/nfs/nfs4client.c en el kernel de Linux versiones anteriores a 5.13.4, presenta un ordenamiento incorrecto de la configuración de la conexión, que permite a operadores de servidores NFSv4 remotos causar una denegación de servicio (c... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-38200
https://notcve.org/view.php?id=CVE-2021-38200
08 Aug 2021 — arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command. El archivo arch/powerpc/perf/core-book3s.c en el kernel de Linux versiones anteriores a 5.12.13, en sistemas con perf_event_paranoid=-1 y sin soporte específico de controlador PMU registrado, permite a usuarios locales c... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13 • CWE-476: NULL Pointer Dereference •