CVSS: 4.4EPSS: 0%CPEs: 3EXPL: 0CVE-2022-0168 – kernel: smb2_ioctl_query_info NULL pointer dereference
https://notcve.org/view.php?id=CVE-2022-0168
A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system. Se encontró un problema de denegación de servicio (DOS) en la función smb2_ioctl_query_info del kernel de Linux en el archivo fs/cifs/smb2ops.c Common Internet File System (CIFS) debido a un retorno incorrecto de la función memdup_user. Este fallo permite a un atacante local privilegiado (CAP_SYS_ADMIN) bloquear el sistema. • https://access.redhat.com/security/cve/CVE-2022-0168 https://bugzilla.redhat.com/show_bug.cgi?id=2037386 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d6f5e358452479fa8a773b5c6ccc9e4ec5a20880 • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 17EXPL: 0CVE-2022-1199
https://notcve.org/view.php?id=CVE-2022-1199
A flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user space, resulting in a null-ptr-deref vulnerability and a use-after-free vulnerability. Se ha encontrado un fallo en el kernel de Linux. Este fallo permite a un atacante bloquear el kernel de Linux al simular la radioafición desde el espacio de usuario, resultando en una vulnerabilidad null-ptr-deref y una vulnerabilidad de uso de memoria previamente liberada • https://access.redhat.com/security/cve/CVE-2022-1199 https://bugzilla.redhat.com/show_bug.cgi?id=2070694 https://github.com/torvalds/linux/commit/4e0f718daf97d47cf7dec122da1be970f145c809 https://github.com/torvalds/linux/commit/71171ac8eb34ce7fe6b3267dce27c313ab3cb3ac https://github.com/torvalds/linux/commit/7ec02f5ac8a5be5a3f20611731243dc5e1d9ba10 https://security.netapp.com/advisory/ntap-20221228-0006 https://www.openwall.com/lists/oss-security/2022/04/02/5 • CWE-416: Use After Free CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 2CVE-2022-1198
https://notcve.org/view.php?id=CVE-2022-1198
A use-after-free vulnerabilitity was discovered in drivers/net/hamradio/6pack.c of linux that allows an attacker to crash linux kernel by simulating ax25 device using 6pack driver from user space. Se ha detectado una vulnerabilidad de uso de memoria previamente liberada en el archivo drivers/net/hamradio/6pack.c de linux que permite a un atacante bloquear el kernel de linux al simular el dispositivo ax25 mediante el controlador 6pack desde el espacio de usuario • https://access.redhat.com/security/cve/CVE-2022-1198 https://bugzilla.redhat.com/show_bug.cgi?id=2070689 https://github.com/torvalds/linux/commit/efe4186e6a1b54bf38b9e05450d43b0da1fd7739 https://www.openwall.com/lists/oss-security/2022/04/02/3 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 2CVE-2022-1158 – kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region
https://notcve.org/view.php?id=CVE-2022-1158
A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition. Se ha encontrado un fallo en KVM. Cuando era actualizada la entrada de la tabla de páginas de un huésped, vm_pgoff era usado incorrectamente como desplazamiento para obtener el pfn de la página. • https://bugzilla.redhat.com/show_bug.cgi?id=2069793 https://security.netapp.com/advisory/ntap-20230214-0003 https://www.openwall.com/lists/oss-security/2022/04/08/4 https://access.redhat.com/security/cve/CVE-2022-1158 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 34EXPL: 0CVE-2021-3669 – kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts
https://notcve.org/view.php?id=CVE-2021-3669
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS. Se ha encontrado un fallo en el kernel de Linux. La medición del uso de la memoria compartida no escala con grandes recuentos de segmentos de memoria compartida, lo que podría conllevar a el agotamiento de recursos y el DoS. • https://access.redhat.com/security/cve/CVE-2021-3669 https://bugzilla.redhat.com/show_bug.cgi?id=1980619 https://bugzilla.redhat.com/show_bug.cgi?id=1986473 https://security-tracker.debian.org/tracker/CVE-2021-3669 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •