CVE-2018-10881 – kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image
https://notcve.org/view.php?id=CVE-2018-10881
26 Jul 2018 — A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound access in ext4_get_group_info function, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image. Se ha detectado una vulnerabilidad en el sistema de archivos ext4 del kernel de Linux. Un usuario local puede provocar un acceso fuera de límites en la función ext4_get_group_info, una denegación de servicio (DoS) y un cierre inesperado del sistema montando y operando una im... • http://patchwork.ozlabs.org/patch/929792 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVE-2018-10901 – kernel: kvm: vmx: host GDT limit corruption
https://notcve.org/view.php?id=CVE-2018-10901
26 Jul 2018 — A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges. Se encontró un fallo en el subsistema de virtualización KVM del kernel de Linux. • http://www.securityfocus.com/bid/104905 • CWE-665: Improper Initialization •
CVE-2018-10880 – kernel: stack-out-of-bounds write in ext4_update_inline_data function
https://notcve.org/view.php?id=CVE-2018-10880
25 Jul 2018 — Linux kernel is vulnerable to a stack-out-of-bounds write in the ext4 filesystem code when mounting and writing to a crafted ext4 image in ext4_update_inline_data(). An attacker could use this to cause a system crash and a denial of service. El kernel de Linux es vulnerable a una escritura de pila fuera de límites en el código del sistema de archivos al montar y escribir en una imagen ext4 manipulada en ext4_update_inline_data(). Un atacante podría utilizar esto para provocar un cierre inesperado del sistem... • http://patchwork.ozlabs.org/patch/930639 • CWE-787: Out-of-bounds Write •
CVE-2018-13405 – Linux (Ubuntu) - Other Users coredumps Can Be Read via setgid Directory and killpriv Bypass
https://notcve.org/view.php?id=CVE-2018-13405
06 Jul 2018 — The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non... • https://www.exploit-db.com/exploits/45033 • CWE-269: Improper Privilege Management CWE-284: Improper Access Control •
CVE-2018-13094 – kernel: NULL pointer dereference in xfs_da_shrink_inode function
https://notcve.org/view.php?id=CVE-2018-13094
03 Jul 2018 — An issue was discovered in fs/xfs/libxfs/xfs_attr_leaf.c in the Linux kernel through 4.17.3. An OOPS may occur for a corrupted xfs image after xfs_da_shrink_inode() is called with a NULL bp. Se ha descubierto un problema en fs/xfs/libxfs/xfs_attr_leaf.c en el kernel de Linux hasta la versión 4.17.3. Puede ocurrir un OOPS para una imagen xfs corrupta después de que se llame a xfs_da_shrink_inode() con un bp NULL. An issue was discovered in the XFS filesystem in fs/xfs/libxfs/xfs_attr_leaf.c in the Linux kern... • https://access.redhat.com/errata/RHSA-2019:0831 • CWE-476: NULL Pointer Dereference •
CVE-2018-13097 – Ubuntu Security Notice USN-4094-1
https://notcve.org/view.php?id=CVE-2018-13097
03 Jul 2018 — An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect user_block_count in a corrupted f2fs image, leading to a denial of service (BUG). Se ha descubierto un problema en fs/f2fs/super.c en el kernel de Linux hasta la versión 4.17.3. Existe una error de lectura fuera de límites o de división entre cero para un user_block_count incorrecto en una imagen f2fs corrupta, conduciendo a una denegación de servicio (BUG)... • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html • CWE-125: Out-of-bounds Read CWE-369: Divide By Zero •
CVE-2018-13093 – kernel: NULL pointer dereference in lookup_slow function
https://notcve.org/view.php?id=CVE-2018-13093
03 Jul 2018 — An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation. Se ha descubierto un problema en fs/xfs/xfs_icache.c en el kernel de Linux hasta la versión 4.17.3. Existe una desreferencia de puntero NULL y pánico en lookup_slow() en un puntero NULL inod... • https://access.redhat.com/errata/RHSA-2019:2029 • CWE-476: NULL Pointer Dereference •
CVE-2018-13096 – Ubuntu Security Notice USN-4094-1
https://notcve.org/view.php?id=CVE-2018-13096
03 Jul 2018 — An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.14. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image. Se ha descubierto un problema en fs/f2fs/super.c en el kernel de Linux hasta la versión 4.14. Puede ocurrir una denegación de servicio (acceso a memoria fuera de límites y BUG) cuando se encuentra un tamaño de mapa de bits anormal cuando se monta una imagen f2fs manipulada USN-3821-1 fixe... • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVE-2018-13100 – Ubuntu Security Notice USN-4094-1
https://notcve.org/view.php?id=CVE-2018-13100
03 Jul 2018 — An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs image, as demonstrated by a divide-by-zero error. Se ha descubierto un problema en fs/f2fs/super.c en el kernel de Linux hasta la versión 4.17.3, que no valida correctamente secs_per_zone en una imagen f2f corrupta, tal y como queda demostrado con un error de división entre cero. It was discovered that the alarmtimer implementation in the Linux kernel contained an... • http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html • CWE-369: Divide By Zero •
CVE-2018-13095 – kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c
https://notcve.org/view.php?id=CVE-2018-13095
03 Jul 2018 — An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork. Se ha descubierto un problema en fs/xfs/libxfs/xfs_inode_buf.c en el kernel de Linux hasta la versión 4.17.3. Puede ocurrir una denegación de servicio (corrupción de memoria y BUG) para una imagen xfs corrupta después de encontrarse ... • https://access.redhat.com/errata/RHSA-2019:1350 • CWE-476: NULL Pointer Dereference CWE-787: Out-of-bounds Write •