CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 1CVE-2022-1263 – kernel: KVM: NULL pointer dereference in kvm_dirty_ring_push in virt/kvm/dirty_ring.c
https://notcve.org/view.php?id=CVE-2022-1263
08 Jun 2022 — A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. Se encontró un problema de desreferencia de puntero NULL en KVM cuando es liberada una vCPU con el soporte de anillo sucio habilitado. Este fallo permite a un atacante local no privilegiado en el host emitir llamadas ioctl específicas, causando un... • https://access.redhat.com/security/cve/CVE-2022-1263 • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0CVE-2022-1651 – Ubuntu Security Notice USN-5469-1
https://notcve.org/view.php?id=CVE-2022-1651
08 Jun 2022 — A memory leak flaw was found in the Linux kernel in acrn_dev_ioctl in the drivers/virt/acrn/hsm.c function in how the ACRN Device Model emulates virtual NICs in VM. This flaw allows a local privileged attacker to leak unauthorized kernel information, causing a denial of service. Se ha encontrado un fallo de pérdida de memoria en el kernel de Linux en la función acrn_dev_ioctl del archivo drivers/virt/acrn/hsm.c en la forma en que el modelo de dispositivo ACRN emula las NIC virtuales en la VM. Este fallo per... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecd1735f14d6ac868ae5d8b7a2bf193fa11f388b • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 7.1EPSS: 0%CPEs: 13EXPL: 0CVE-2022-1671 – Ubuntu Security Notice USN-5469-1
https://notcve.org/view.php?id=CVE-2022-1671
08 Jun 2022 — A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information. Se ha encontrado un fallo de desreferencia de puntero NULL en la función rxrpc_preparse_s en el archivo net/rxrpc/server_key.c en el kernel de Linux. Este fallo permite a un atacante local bloquear el sistema o filtrar información interna del kernel. It was discovered that the Linux kernel did not properly rest... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87 • CWE-476: NULL Pointer Dereference •
CVSS: 8.5EPSS: 0%CPEs: 7EXPL: 0CVE-2022-1012 – kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
https://notcve.org/view.php?id=CVE-2022-1012
08 Jun 2022 — A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. Se ha encontrado un problema de pérdida de memoria en el algoritmo de generación de puertos de origen TCP en el archivo net/ipv4/tcp.c debido al pequeño tamaño de la tabla de perturbación. Este fallo puede permitir a un atacante un filtrado de información y puede causar un problema de ... • https://bugzilla.redhat.com/show_bug.cgi?id=2064604 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2022-32296 – Ubuntu Security Notice USN-5684-1
https://notcve.org/view.php?id=CVE-2022-32296
05 Jun 2022 — The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056. El kernel de Linux anterior a la versión 5.17.9 permite a los servidores TCP identificar a los clientes observando qué puertos de origen se utilizan. Esto ocurre debido al uso del Algoritmo 4 ("Double-Hash Port Selection Algorithm") del RFC 6056 It was discovered that the framebuffer driver on the Linux ... • https://arxiv.org/abs/2209.12993 • CWE-330: Use of Insufficiently Random Values •
CVSS: 8.8EPSS: 0%CPEs: 22EXPL: 8CVE-2022-32250 – Linux Kernel nf_tables_expr_destroy Use-After-Free Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-32250
02 Jun 2022 — net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. El archivo net/netfilter/nf_tables_api.c en el kernel de Linux versiones hasta 5.18.1, permite a un usuario local (capaz de crear espacios de nombres de usuario/red) escalar privilegios a root porque una comprobación incorrecta de NFT_STATEFUL_EXPR conlleva a un uso de memoria previamen... • https://github.com/theori-io/CVE-2022-32250-exploit • CWE-416: Use After Free •
CVSS: 6.9EPSS: 0%CPEs: 6EXPL: 0CVE-2022-1789 – kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva
https://notcve.org/view.php?id=CVE-2022-1789
31 May 2022 — With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference. Con shadow paging habilitada, la instrucción INVPCID resulta en una llamada a kvm_mmu_invpcid_gva. Si INVPCID es ejecutado con CR0.PG=0, la llamada de retorno invlpg no es establecida y el resultado es una desreferencia de puntero NULL A flaw was found in KVM. With shadow paging enabled if INVPCID is e... • https://bugzilla.redhat.com/show_bug.cgi?id=1832397 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2022-1786 – Debian Security Advisory 5161-1
https://notcve.org/view.php?id=CVE-2022-1786
31 May 2022 — A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en el subsistema io_uring del kernel de Linux en la forma en que un usuario configura un anillo con IORING_SETUP_IOPOLL con más de una tarea completando envíos en este anillo. E... • https://bugzilla.redhat.com/show_bug.cgi?id=2087760 • CWE-416: Use After Free CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2022-1652 – Ubuntu Security Notice USN-5582-1
https://notcve.org/view.php?id=CVE-2022-1652
31 May 2022 — Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system. El Kernel de Linux podría permitir a un atacante local ejecutar código arbitrario en el sistema, causado por un fallo de uso de memoria previamente liberada concurrente en la función bad_f... • https://bugzilla.redhat.com/show_bug.cgi?id=1832397 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2022-1419 – Ubuntu Security Notice USN-5500-1
https://notcve.org/view.php?id=CVE-2022-1419
31 May 2022 — The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem_gem_object *(created in *vgem_gem_dumb_create*) concurrently, and *vgem_gem_dumb_create *will access the freed drm_vgem_gem_object. La causa principal de esta vulnerabilidad es que el ioctl$DRM_IOCTL_MODE_DESTROY_DUMB puede disminuir el refcount de *drm_vgem_gem_object *(creado en *vgem_gem_dumb_create*) simultáneamente, y *vgem_gem_dumb_create *accederá al drm_vgem_gem_object liberado It wa... • https://bugzilla.redhat.com/show_bug.cgi?id=2077560 • CWE-416: Use After Free •