CVSS: 6.7EPSS: 0%CPEs: 3EXPL: 1CVE-2023-42755 – Kernel: rsvp: out-of-bounds read in rsvp_classify()
https://notcve.org/view.php?id=CVE-2023-42755
A flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the `rsvp_classify` function. This issue may allow a local user to crash the system and cause a denial of service. Se encontró una falla en el clasificador del IPv4 Resource Reservation Protocol (RSVP) en el kernel de Linux. El puntero xprt puede ir más allá de la parte lineal del skb, lo que lleva a una lectura fuera de límites en la función `rsvp_classify`. • https://access.redhat.com/errata/RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:3138 https://access.redhat.com/security/cve/CVE-2023-42755 https://bugzilla.redhat.com/show_bug.cgi?id=2239847 https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://seclists.org/oss-sec/2023/q3/229 • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 1CVE-2023-42754 – Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()
https://notcve.org/view.php?id=CVE-2023-42754
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system. Se encontró una falla de desreferencia del puntero NULL en la pila ipv4 del kernel de Linux. Se suponía que el búfer de socket (skb) estaba asociado con un dispositivo antes de llamar a __ip_options_compile, lo que no siempre es el caso si ipvs redirige el skb. • 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-2023-42754 https://bugzilla.redhat.com/show_bug.cgi?id=2239845 https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH https://lists.fedoraproject.org/archives/list/package-announc • CWE-476: NULL Pointer Dereference •
CVSS: 4.7EPSS: 0%CPEs: 10EXPL: 0CVE-2023-4732 – Kernel: race between task migrating pages and another task calling exit_mmap to release those same pages getting invalid opcode bug in include/linux/swapops.h
https://notcve.org/view.php?id=CVE-2023-4732
A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x. Se encontró una falla en pfn_swap_entry_to_page en el subsistema de administración de memoria del kernel de Linux. En esta falla, un atacante con privilegios de usuario local puede causar un problema de denegación de servicio debido a una declaración de ERROR que hace referencia a pmd_t x. • https://access.redhat.com/errata/RHSA-2023:6901 https://access.redhat.com/errata/RHSA-2023:7077 https://access.redhat.com/errata/RHSA-2023:7539 https://access.redhat.com/errata/RHSA-2024:0412 https://access.redhat.com/security/cve/CVE-2023-4732 https://bugzilla.redhat.com/show_bug.cgi?id=2236982 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-366: Race Condition within a Thread •
CVSS: 8.2EPSS: 0%CPEs: 3EXPL: 0CVE-2023-39191 – Kernel: ebpf: insufficient stack type checks in dynptr
https://notcve.org/view.php?id=CVE-2023-39191
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel. Se encontró una falla de validación de entrada incorrecta en el subsistema eBPF del kernel de Linux. El problema se debe a una falta de validación adecuada de los punteros dinámicos dentro de los programas eBPF proporcionados por el usuario antes de ejecutarlos. • https://access.redhat.com/errata/RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2024:0381 https://access.redhat.com/errata/RHSA-2024:0439 https://access.redhat.com/errata/RHSA-2024:0448 https://access.redhat.com/security/cve/CVE-2023-39191 https://bugzilla.redhat.com/show_bug.cgi?id=2226783 https://www.zerodayinitiative.com/advisories/ZDI-CAN-19399 • CWE-20: Improper Input Validation •
CVSS: 6.7EPSS: 0%CPEs: 3EXPL: 0CVE-2023-39192 – Kernel: netfilter: xtables out-of-bounds read in u32_match_it()
https://notcve.org/view.php?id=CVE-2023-39192
A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure. Se encontró una falla en el subsistema Netfilter en el kernel de Linux. El módulo xt_u32 no validó los campos en la estructura xt_u32. • https://access.redhat.com/errata/RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:3138 https://access.redhat.com/security/cve/CVE-2023-39192 https://bugzilla.redhat.com/show_bug.cgi?id=2226784 https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://www.zerodayinitiative.com/advisories/ZDI-CAN-18408 • CWE-125: Out-of-bounds Read •