ID de Prueba:	1.3.6.1.4.1.25623.1.0.844314
Categoría:	Ubuntu Local Security Checks
Título:	Ubuntu: Security Advisory for linux (USN-4254-1)
Resumen:	The remote host is missing an update for the 'linux'; package(s) announced via the USN-4254-1 advisory.
Descripción:	Summary: The remote host is missing an update for the 'linux' package(s) announced via the USN-4254-1 advisory. Vulnerability Insight: It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. (CVE-2019-18683) It was discovered that the btrfs file system in the Linux kernel did not properly validate metadata, leading to a NULL pointer dereference. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2019-18885) It was discovered that multiple memory leaks existed in the Marvell WiFi-Ex Driver for the Linux kernel. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19057) It was discovered that the crypto subsystem in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19062) It was discovered that the Realtek rtlwifi USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19063) Dan Carpenter discovered that the AppleTalk networking subsystem of the Linux kernel did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-19227) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle ioctl requests to get emulated CPUID features. An attacker with access to /dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-19332) It was discovered that the B2C2 FlexCop USB device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15291) Affected Software/OS: 'linux' package(s) on Ubuntu 16.04 LTS. Solution: Please install the updated package(s). CVSS Score: 6.9 CVSS Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2019-14615 Common Vulnerability Exposure (CVE) ID: CVE-2019-18683 Common Vulnerability Exposure (CVE) ID: CVE-2019-18885 Common Vulnerability Exposure (CVE) ID: CVE-2019-19057 Common Vulnerability Exposure (CVE) ID: CVE-2019-19062 Common Vulnerability Exposure (CVE) ID: CVE-2019-19063 Common Vulnerability Exposure (CVE) ID: CVE-2019-19227 Common Vulnerability Exposure (CVE) ID: CVE-2019-19332 Common Vulnerability Exposure (CVE) ID: CVE-2019-15291
Copyright	Copyright (C) 2020 Greenbone Networks GmbH

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