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CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0

24 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: um: Fix potential integer overflow during physmem setup This issue happens when the real map size is greater than LONG_MAX, which can be easily triggered on UML/i386. In the Linux kernel, the following vulnerability has been resolved: um: Fix potential integer overflow during physmem setup This issue happens when the real map size is greater than LONG_MAX, which can be easily triggered on UML/i386. • https://git.kernel.org/stable/c/fe205bdd1321f95f8f3c35d243ea7cb22af8fbe1 •

CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0

24 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer using hypercall page at all, as it has shown to cause problems with speculation mitigations. This is part of XSA-466 / CVE-2024-53241. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: x86/xen: no reali... • https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5 •

CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0

24 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: xen/netfront: fix crash when removing device When removing a netfront device directly after a suspend/resume cycle it might happen that the queues have not been setup again, causing a crash during the attempt to stop the queues another time. Fix that by checking the queues are existing before trying to stop them. This is XSA-465 / CVE-2024-53240. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xen/netfront: se corrige un ... • https://git.kernel.org/stable/c/ed773dd798bf720756d20021b8d8a4a3d7184bda •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

07 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: fsnotify: Fix ordering of iput() and watched_objects decrement Ensure the superblock is kept alive until we're done with iput(). Holding a reference to an inode is not allowed unless we ensure the superblock stays alive, which fsnotify does by keeping the watched_objects count elevated, so iput() must happen before the watched_objects decrement. This can lead to a UAF of something like sb->s_fs_info in tmpfs, but the UAF is hard to hit beca... • https://git.kernel.org/stable/c/d2f277e26f521ccf6fb438463b41dba6123caabe • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0

06 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: initramfs: avoid filename buffer overrun The initramfs filename field is defined in Documentation/driver-api/early-userspace/buffer-format.rst as: 37 cpio_file := ALGN(4) + cpio_header + filename + "\0" + ALGN(4) + data ... 55 ============= ================== ========================= 56 Field name Field size Meaning 57 ============= ================== ========================= ... 70 c_namesize 8 bytes Length of filename, including final \... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •

CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0

06 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add missing range check in bitmap_ip_uadt When tb[IPSET_ATTR_IP_TO] is not present but tb[IPSET_ATTR_CIDR] exists, the values of ip and ip_to are slightly swapped. Therefore, the range check for ip should be done later, but this part is missing and it seems that the vulnerability occurs. So we should add missing range checks and remove unnecessary range checks. In the Linux kernel, the following vulnerability has been reso... • https://git.kernel.org/stable/c/72205fc68bd13109576aa6c4c12c740962d28a6c •

CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0

02 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format This can lead to out of bounds writes since frames of this type were not taken into account when calculating the size of the frames buffer in uvc_parse_streaming. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: uvcvideo: Omitir el análisis de fotogramas de tipo UVC_VS_UNDEFINED en uvc_parse_format Esto puede provocar escrituras fuera ... • https://git.kernel.org/stable/c/c0efd232929c2cd87238de2cccdaf4e845be5b0c • CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0

02 Dec 2024 — In the Linux kernel, the following vulnerability has been resolved: hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer When hvs is released, there is a possibility that vsk->trans may not be initialized to NULL, which could lead to a dangling pointer. This issue is resolved by initializing vsk->trans to NULL. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hv_sock: inicialización de vsk->trans en NULL para evitar un puntero colgante. Cuando se lanza hvs, existe la p... • https://git.kernel.org/stable/c/ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 •

CVSS: 6.7EPSS: 0%CPEs: 1EXPL: 0

23 Sep 2022 — There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c Se presenta una lectura de memoria arbitraria dentro del BPF del Kernel de Linux - Las constantes proporcionadas para rellenar los punteros en los structs pasados a b... • https://git.kernel.org/bpf/bpf/c/86f44fcec22c • CWE-125: Out-of-bounds Read •

CVSS: 8.7EPSS: 0%CPEs: 22EXPL: 1

26 May 2021 — An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. Se detectó un problema en Linux: KVM mediante del manejo inapropiado de Los vmas VM_IO|VM_PFNMAP en KVM pueden omitir unas comprobaciones RO y puede conllevar a que las pági... • http://www.openwall.com/lists/oss-security/2021/06/26/1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-863: Incorrect Authorization •