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: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2023-5972 – Kernel: the nfta_inner_num and nfta_expr_name netlink attributes accessed without checking its presence in nft_inner.c
https://notcve.org/view.php?id=CVE-2023-5972
A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system. Se encontró una falla de desreferencia de puntero nulo en la funcionalidad nft_inner.c de netfilter en el kernel de Linux. Este problema podría permitir que un usuario local bloquee el sistema o aumente sus privilegios en el sistema. • https://access.redhat.com/security/cve/CVE-2023-5972 https://bugzilla.redhat.com/show_bug.cgi?id=2248189 https://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7 https://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-6111 – Use-after-free in Linux kernel's netfilter: nf_tables component
https://notcve.org/view.php?id=CVE-2023-6111
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_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630. 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_trans_gc_catchall no eliminó el elemento del conjunto general de catchall_list cuando el argumento sync es verdadero, lo que hace posible liberar un elemento del conjunto general muchas veces. Recomendamos actualizar más allá del commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ https://li • CWE-416: Use After Free •
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 •