CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2023-6817 – Use-after-free in Linux kernel's netfilter: nf_tables component
https://notcve.org/view.php?id=CVE-2023-6817
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free. We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a. 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. La función nft_pipapo_walk no omitió elementos inactivos durante el recorrido establecido, lo que podría provocar desactivaciones dobles de elementos PIPAPO (Políticas de paquetes de pila), lo que llevaría a un use-after-free. Recomendamos actualizar después del commit 317eb9685095678f2c9f5a8189de698c5354316a. A use-after-free flaw was found in the Netfilter subsystem in the Linux kernel via the nft_pipapo_walk function. • http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html http://www.openwall.com/lists/oss-security/2023/12/22/13 http://www.openwall.com/lists/oss-security/2023/12/22/6 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=317eb9685095678f2c9f5a8189de698c5354316a https://kernel.dance/317eb9685095678f2c9f5a8189de698c5354316a https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html https://access.redhat.com/security/cve/CVE-2023 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-50431
https://notcve.org/view.php?id=CVE-2023-50431
sec_attest_info in drivers/accel/habanalabs/common/habanalabs_ioctl.c in the Linux kernel through 6.6.5 allows an information leak to user space because info->pad0 is not initialized. sec_attest_info en drivers/accel/habanalabs/common/habanalabs_ioctl.c en el kernel de Linux hasta 6.6.5 permite una fuga de información al espacio del usuario porque info->pad0 no está inicializado. • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a9f07790a4b2250f0140e9a61c7f842fd9b618c7 https://lists.freedesktop.org/archives/dri-devel/2023-November/431772.html •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2023-6560 – Kernel: io_uring out of boundary memory access in __io_uaddr_map()
https://notcve.org/view.php?id=CVE-2023-6560
An out-of-bounds memory access flaw was found in the io_uring SQ/CQ rings functionality in the Linux kernel. This issue could allow a local user to crash the system. Se encontró una falla de acceso a memoria fuera de los límites en la funcionalidad de anillos io_uring SQ/CQ en el kernel de Linux. Este problema podría permitir que un usuario local bloquee el sistema. __io_uaddr_map() in io_uring suffers from dangerous handling of the multi-page region. • http://packetstormsecurity.com/files/176405/io_uring-__io_uaddr_map-Dangerous-Multi-Page-Handling.html https://access.redhat.com/security/cve/CVE-2023-6560 https://bugzilla.redhat.com/show_bug.cgi?id=2253249 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AU4NHBDEDLRW33O76Y6LFECEYNQET5GZ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UCQIPFUQXKXRCH5Y4RP3C5NK4IHNBNVK https://patchwork.kernel.org/project/io-uring/patch/20231130194633.649319&# • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-823: Use of Out-of-range Pointer Offset •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2023-6622 – Kernel: null pointer dereference vulnerability in nft_dynset_init()
https://notcve.org/view.php?id=CVE-2023-6622
A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service. Se encontró una vulnerabilidad de desreferencia de puntero nulo en nft_dynset_init() en net/netfilter/nft_dynset.c en nf_tables en el kernel de Linux. Este problema puede permitir que un atacante local con privilegios de usuario CAP_NET_ADMIN active una denegación de servicio. • https://access.redhat.com/errata/RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:3138 https://access.redhat.com/security/cve/CVE-2023-6622 https://bugzilla.redhat.com/show_bug.cgi?id=2253632 https://github.com/torvalds/linux/commit/3701cd390fd731ee7ae8b8006246c8db82c72bea https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAOVK2F3ALGKYIQ5IOMAYEC2DGI7BWAW https://lists.fedoraproject.org/archives/list/package-announce& • CWE-476: NULL Pointer Dereference •
CVSS: 4.9EPSS: 0%CPEs: 2EXPL: 0CVE-2023-34324 – Possible deadlock in Linux kernel event handling
https://notcve.org/view.php?id=CVE-2023-34324
Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by removal of a paravirtual device on the other side. As this action will cause console messages to be issued on the other side quite often, the chance of triggering the deadlock is not neglectable. Note that 32-bit Arm-guests are not affected, as the 32-bit Linux kernel on Arm doesn't use queued-RW-locks, which are required to trigger the issue (on Arm32 a waiting writer doesn't block further readers to get the lock). El cierre de un canal de eventos en el kernel de Linux puede provocar un punto muerto. Esto sucede cuando el cierre se realiza en paralelo a una acción de la consola Xen no relacionada y al manejo de una interrupción de la consola Xen en un invitado sin privilegios. El cierre de un canal de eventos se desencadena, por ejemplo, al retirar un dispositivo paravirtual del otro lado. • https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html https://xenbits.xenproject.org/xsa/advisory-441.html • CWE-400: Uncontrolled Resource Consumption •