CVE-2018-14681 – libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c
https://notcve.org/view.php?id=CVE-2018-14681
An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite. Se ha descubierto un problema en kwajd_read_headers en mspack/kwajd.c en libmspack en versiones anteriores a la 0.7alpha. Las extensiones de encabezado de archivo KWAJ incorrectas pueden provocar una sobrescritura de uno o dos bytes. • http://www.openwall.com/lists/oss-security/2018/07/26/1 http://www.securitytracker.com/id/1041410 https://access.redhat.com/errata/RHSA-2018:3327 https://access.redhat.com/errata/RHSA-2018:3505 https://bugs.debian.org/904799 https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8 https://lists.debian.org/debian-lts-announce/2018/08/msg00007.html https://security.gentoo.org/glsa/201903-20 https://usn.ubuntu.com/3728-1 https://usn.ubuntu.com/3728-2 • CWE-787: Out-of-bounds Write •
CVE-2017-18344 – Linux Kernel 4.14.7 (Ubuntu 16.04 / CentOS 7) - (KASLR & SMEP Bypass) Arbitrary File Read
https://notcve.org/view.php?id=CVE-2017-18344
The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE). La implementación de llamada del sistema timer_create en kernel/time/posix-timers.c en el kernel de Linux en versiones anteriores a la 4.14.8 no valida correctamente el campo sigevent->sigev_notify, conduciendo a un acceso fuera de límites en la función show_timer (que se llama cuando se lee /proc/$PID/timers). Esto permite que las aplicaciones del espacio del usuario lean memoria del kernel arbitraria (en un kernel construido con CONFIG_POSIX_TIMERS y CONFIG_CHECKPOINT_RESTORE). The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function. • https://www.exploit-db.com/exploits/45175 http://www.securityfocus.com/bid/104909 http://www.securitytracker.com/id/1041414 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://access.redhat.com/errata/RHSA-2018:3459 https://access.redhat.com/errata/RHSA-2018:3540 https://access.redhat.com/errata/RHSA-2018:3586 https://access.redhat.com/errata/RHSA-2018:3590 https:/ • CWE-125: Out-of-bounds Read •
CVE-2018-10879 – kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file
https://notcve.org/view.php?id=CVE-2018-10879
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause a use-after-free in ext4_xattr_set_entry function and a denial of service or unspecified other impact may occur by renaming a file in 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 uso de memoria previamente liberada en la función ext4_xattr_set_entry y puede ocurrir una denegación de servicio (DoS) u otro impacto no especificado renombrando una imagen del sistema de archivos ext4 manipulado. • http://patchwork.ozlabs.org/patch/928666 http://patchwork.ozlabs.org/patch/928667 http://www.securityfocus.com/bid/104902 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.kernel.org/show_bug.cgi?id=200001 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10879 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=513f86d73855ce556ea9522b6 • CWE-416: Use After Free •
CVE-2018-10878 – kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image
https://notcve.org/view.php?id=CVE-2018-10878
A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write and a denial of service or unspecified other impact is possible by mounting and operating 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 una escritura fuera de límites y una denegación de servicio (DoS) u otro impacto no especificado montando y operando una imagen del sistema de archivos ext4 manipulado. • http://patchwork.ozlabs.org/patch/929237 http://patchwork.ozlabs.org/patch/929238 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.kernel.org/show_bug.cgi?id=199865 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10878 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77260807d1170a8cf35dbb06e07461a655f67eee https://git.kernel.org/pub • CWE-787: Out-of-bounds Write •
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
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 imagen del sistema de archivos ext4 especialmente manipulada. • http://patchwork.ozlabs.org/patch/929792 http://www.securityfocus.com/bid/104901 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.kernel.org/show_bug.cgi?id=200015 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10881 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e8ab72a812396996035a37e5ca4b3b99b5d214b https://lists.debian.org/debia • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •