CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2018-10883 – kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function
https://notcve.org/view.php?id=CVE-2018-10883
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image. Se ha encontrado un error en el sistema de archivos ext4 del kernel de Linux. Un usuario local puede provocar una escritura fuera de límites en jbd2_journal_dirty_metadata, una denegación de servicio (DoS) y un cierre inesperado del sistema montando y operando una imagen del sistema de archivos ext4 manipulada. A flaw was found in the Linux kernel's ext4 filesystem. • https://access.redhat.com/errata/RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10883 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8bc1379b82b8e809eef77a9fedbb75c6c297be19 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e09463f220ca9a1a1ecfda84fcda658f99a1f12a https://lists.debian.org/debian-lts-announce/2018/07/msg • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2018-14734 – kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c
https://notcve.org/view.php?id=CVE-2018-14734
drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free). drivers/infiniband/core/ucma.c en el kernel de Linux hasta la versión 4.17.11 permite que ucma_leave_multicast acceda a cierta estructura de datos tras un paso de limpieza en ucma_process_join, lo que permite que los atacantes provoquen una denegación de servicio (uso de memoria previamente liberada). A flaw was found in the Linux Kernel in the ucma_leave_multicast() function in drivers/infiniband/core/ucma.c which allows access to a certain data structure after freeing it in ucma_process_join(). This allows an attacker to cause a use-after-free bug and to induce kernel memory corruption, leading to a system crash or other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8 https://access.redhat.com/errata/RHSA-2019:0831 https://access.redhat.com/errata/RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2043 https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html https://usn.ubuntu.com/3797-1 https://usn.ubuntu.com/3797-2 https://usn.ubuntu.com/38 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2018-14678
https://notcve.org/view.php?id=CVE-2018-14678
An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges. Se ha descubierto un problema en el kernel de Linux hasta la versión 4.17.11, tal y como se utiliza en Xen hasta las versiones 4.11.x. El punto de entrada de xen_failsafe_callback en arch/x86/entry/entry_64.S no mantiene correctamente el RBX, lo que permite a los usuarios locales provocar una denegación de servicio (uso de memoria no inicializada y cierre inesperado del sistema). • http://www.securityfocus.com/bid/104924 http://www.securitytracker.com/id/1041397 https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html https://usn.ubuntu.com/3931-1 https://usn.ubuntu.com/3931-2 https://www.debian.org/security/2018/dsa-4308 https://xenbits.xen.org/xsa/advisory-274.html • CWE-665: Improper Initialization •
CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 1CVE-2018-14611
https://notcve.org/view.php?id=CVE-2018-14611
An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c. Se ha descubierto un problema en el kernel de Linux hasta la versión 4.17.10. Existe un uso de memoria previamente liberada en try_merge_free_space() cuando se monta una imagen btrfs manipulada debido a una falta de verificaciones de flags de tipos de chunks en btrfs_check_chunk_valid en fs/btrfs/volumes.c. • http://www.securityfocus.com/bid/104917 https://bugzilla.kernel.org/show_bug.cgi?id=199839 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://patchwork.kernel.org/patch/10503099 https://usn.ubuntu.com/3932-1 https://usn.ubuntu.com/3932-2 https://usn.ubuntu.com/4094-1 https://usn.ubuntu.com/4118-1 • CWE-416: Use After Free •
CVSS: 7.1EPSS: 0%CPEs: 1EXPL: 1CVE-2018-14610
https://notcve.org/view.php?id=CVE-2018-14610
An issue was discovered in the Linux kernel through 4.17.10. There is out-of-bounds access in write_extent_buffer() when mounting and operating a crafted btrfs image, because of a lack of verification that each block group has a corresponding chunk at mount time, within btrfs_read_block_groups in fs/btrfs/extent-tree.c. Se ha descubierto un problema en el kernel de Linux hasta la versión 4.17.10. Existe un acceso fuera de límites en write_extent_buffer() cuando se monta y opera una imagen btrfs manipulada debido a una falta de verificación de que cada grupo de bloques tenga su chunk correspondiente en el momento de montaje en btrfs_read_block_groups en fs/btrfs/extent-tree.c. • http://www.securityfocus.com/bid/104917 https://bugzilla.kernel.org/show_bug.cgi?id=199837 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://patchwork.kernel.org/patch/10503415 https://usn.ubuntu.com/3932-1 https://usn.ubuntu.com/3932-2 https://usn.ubuntu.com/4094-1 https://usn.ubuntu.com/4118-1 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •