CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 2CVE-2023-42753 – Kernel: netfilter: potential slab-out-of-bound access due to integer underflow
https://notcve.org/view.php?id=CVE-2023-42753
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system. Se encontró una vulnerabilidad de indexación de matrices en el subsistema netfilter del kernel de Linux. Una macro faltante podría provocar un error de cálculo del desplazamiento de la matriz `h->nets`, proporcionando a los atacantes la primitiva de incrementar/disminuir arbitrariamente un búfer de memoria fuera de límites. • http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html https://access.redhat.com/errata/RHSA-2023:7370 https://access.redhat.com/errata/RHSA-2023:7379 https://access.redhat.com/errata/RHSA-2023:7382 https://access.redhat.com/errata/RHSA-2023:7389 https://access.redhat.com/errata/RHSA-2023:7411 https://access.redhat.com/errata/RHSA-2023:7418 https://access.redhat.com/errata/RHSA-2023:7539 https://access.redhat.com/errata/RHSA-2023:7558 h • CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-5158 – Possible dos from guest to host invringh_kiov_advance in vhost driver at drivers/vhost/vringh.c
https://notcve.org/view.php?id=CVE-2023-5158
A flaw was found in vringh_kiov_advance in drivers/vhost/vringh.c in the host side of a virtio ring in the Linux Kernel. This issue may result in a denial of service from guest to host via zero length descriptor. Se encontró una falla en vringh_kiov_advance en drivers/vhost/vringh.c en el lado del host de un virtio ring en el kernel de Linux. Este problema puede provocar una denegación de servicio del huésped al anfitrión a través de un descriptor de longitud cero. • https://access.redhat.com/security/cve/CVE-2023-5158 https://bugzilla.redhat.com/show_bug.cgi?id=2240561 • CWE-684: Incorrect Provision of Specified Functionality •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-36766
https://notcve.org/view.php?id=CVE-2020-36766
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct. Se descubrió un problema en el kernel de Linux anterior a 5.8.6. drivers/media/cec/core/cec-api.c pierde un byte de memoria del kernel en hardware específico a usuarios sin privilegios, debido a la asignación directa de log_addrs con un agujero en la estructura. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6 https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570 •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2023-4244 – Use-after-free in Linux kernel's netfilter: nf_tables component
https://notcve.org/view.php?id=CVE-2023-4244
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. Una vulnerabilidad de use-after-free en el netfilter del kernel de Linux: nf_tables componente puede ser explotado para lograr la escalada de privilegios locales. Debido a una condición de ejecución entre nf_tables transacción del plano de control de enlace de red y la recolección de elementos no utilizados de nft_set, es posible desbordar el contador de referencia causando una vulnerabilidad de use-after-free. Recomendamos actualizar al commit anterior 3e91b0ebd994635df2346353322ac51ce84ce6d8. A use-after-free flaw was found in the Linux kernel’s nftables sub-component due to a race problem between the set GC and transaction in the Linux Kernel. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8 https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8 https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://access.redhat.com/security/cve/CVE-2023-4244 https://bugzilla.redhat.com/show_bug.cgi?id=2235306 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2023-3777 – Use-after-free in Linux kernel's netfilter: nf_tables component
https://notcve.org/view.php?id=CVE-2023-3777
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. Una vulnerabilidad de Use-After-Free en el componente netfilter: nf_tables del kernel de Linux puede explotarse para lograr una escalada de privilegios local. Cuando nf_tables_delrule() vacía las reglas de la tabla, no se verifica si la cadena está vinculada y la regla del propietario de la cadena también puede liberar los objetos en determinadas circunstancias. Recomendamos actualizar al pasado commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. A use-after-free flaw was found in the Linux kernel's netfilter: nf_tables component, which can be exploited to achieve local privilege escalation. • http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8 https://kernel.dance/6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8 https://www.debian.org/security/2023/dsa-5492 https://access.redhat.com/security/cve/CVE-2023-3777 https://bugzilla.redhat.com/show_bug.cgi?id=223 • CWE-416: Use After Free •