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CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 1

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&#x • CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 1

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 •

CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0

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 https://access.redhat.com/errata/RHSA-2018:2390 https://access.redhat.com/errata/RHSA-2018:2391 https://access.redhat.com/errata/RHSA-2018:2392 https://access.redhat.com/errata/RHSA-2018:2393 https://access.redhat.com/errata/RHSA-2018:2394 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36 https://help.ecostruxureit. • CWE-665: Improper Initialization •

CVSS: 7.1EPSS: 0%CPEs: 6EXPL: 2

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 sistema y una denegación de servicio (DoS). A flaw was found in the Linux kernel's ext4 filesystem code. • http://patchwork.ozlabs.org/patch/930639 http://www.securityfocus.com/bid/104907 http://www.securityfocus.com/bid/106503 https://access.redhat.com/errata/RHSA-2018:2948 https://bugzilla.kernel.org/show_bug.cgi?id=200005 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10880 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8cdb5240ec5928b20490a2bb34cb87e9a5f40226 https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html https://usn.ubuntu. • CWE-787: Out-of-bounds Write •

CVSS: 7.0EPSS: 0%CPEs: 5EXPL: 0

An issue was discovered in the __ns_get_path function in fs/nsfs.c in the Linux kernel before 4.11. Due to a race condition when accessing files, a Use After Free condition can occur. This also affects all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-07-05. Debido a una condición de carrera al acceder a los archivos en todas las distribuciones de Android de CAF (Android for MSM, Firefox OS for MSM y QRD Android) que utilizan el kernel de Linux antes del parche de seguridad de nivel del 05/07/2018, puede ocurrir una condición de uso de memoria previamente liberada en el kernel. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073c516ff73557a8f7315066856c04b50383ac34 https://github.com/torvalds/linux/commit/073c516ff73557a8f7315066856c04b50383ac34 https://source.android.com/security/bulletin/2018-07-01 https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?id=34742aaf7cb16c95edba4a7afed6d2c4fa7e434b https://www.codeaurora.org/security-bulletin/2018/07/02/july-2018-code-aurora-security-bulletin • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •