ID de Prueba:	1.3.6.1.4.1.25623.1.0.844563
Categoría:	Ubuntu Local Security Checks
Título:	Ubuntu: Security Advisory for linux (USN-4485-1)
Resumen:	The remote host is missing an update for the 'linux'; package(s) announced via the USN-4485-1 advisory.
Descripción:	Summary: The remote host is missing an update for the 'linux' package(s) announced via the USN-4485-1 advisory. Vulnerability Insight: Timothy Michaud discovered that the i915 graphics driver in the Linux kernel did not properly validate user memory locations for the i915_gem_execbuffer2_ioctl. A local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2018-20669) It was discovered that the Kvaser CAN/USB driver in the Linux kernel did not properly initialize memory in certain situations. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-19947) Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-20810) It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it in certain situations. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2020-10732) It was discovered that the Linux kernel did not correctly apply Speculative Store Bypass Disable (SSBD) mitigations in certain situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-10766) It was discovered that the Linux kernel did not correctly apply Indirect Branch Predictor Barrier (IBPB) mitigations in certain situations. A local attacker could possibly use this to expose sensitive information. (CVE-2020-10767) It was discovered that the Linux kernel could incorrectly enable Indirect Branch Speculation after it has been disabled for a process via a prctl() call. A local attacker could possibly use this to expose sensitive information. (CVE-2020-10768) Luca Bruno discovered that the zram module in the Linux kernel did not properly restrict unprivileged users from accessing the hot_add sysfs file. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-10781) It was discovered that the XFS file system implementation in the Linux kernel did not properly validate meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. (CVE-2020-12655) It was discovered that the bcache subsystem in the Linux kernel did not properly release a lock in some error conditions. A local attacker could possibly use this to cause a denial of service. (CVE-2020-12771) It was discovered that the Virtual Terminal keyboard driver in the Linux kernel contained an integer overflow. A local attacker could possibly use this to have an unspecified ... Description truncated. Please see the references for more information. Affected Software/OS: 'linux' package(s) on Ubuntu 18.04 LTS, Ubuntu 16.04 LTS. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2018-20669 Common Vulnerability Exposure (CVE) ID: CVE-2019-19947 Common Vulnerability Exposure (CVE) ID: CVE-2019-20810 Common Vulnerability Exposure (CVE) ID: CVE-2020-10732 Common Vulnerability Exposure (CVE) ID: CVE-2020-10766 Common Vulnerability Exposure (CVE) ID: CVE-2020-10767 Common Vulnerability Exposure (CVE) ID: CVE-2020-10768 Common Vulnerability Exposure (CVE) ID: CVE-2020-10781 Common Vulnerability Exposure (CVE) ID: CVE-2020-12655 Common Vulnerability Exposure (CVE) ID: CVE-2020-12771 Common Vulnerability Exposure (CVE) ID: CVE-2020-13974 Common Vulnerability Exposure (CVE) ID: CVE-2020-15393 Common Vulnerability Exposure (CVE) ID: CVE-2020-24394 Common Vulnerability Exposure (CVE) ID: CVE-2020-12656
Copyright	Copyright (C) 2020 Greenbone Networks GmbH

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